diff --git a/frontend/src/components/LessonComplete.tsx b/frontend/src/components/LessonComplete.tsx
new file mode 100644
index 0000000..e7d55f3
--- /dev/null
+++ b/frontend/src/components/LessonComplete.tsx
@@ -0,0 +1,26 @@
+import DuoSplash from "../assets/img/duo-splash.png";
+import { useNavigate } from "react-router-dom";
+
+interface LessonCompleteProps {
+    home: string;
+  }
+
+export default function LessonComplete({ home } : LessonCompleteProps)
+{
+  const navigate = useNavigate();
+
+  return <div className="flex flex-col justify-center">
+    <div className="flex flex-col p-5 gap-5 items-center">
+      <img src={DuoSplash} alt="Duolingo Logo"></img>
+
+      <h1>Well done!</h1>
+
+      <p className="white">
+        Experience Gained: +100XP
+      </p>
+      <button className="green" onClick={() => navigate(home)}>
+        Continue
+      </button>
+    </div>
+  </div>
+}
diff --git a/frontend/src/pages/Character.tsx b/frontend/src/pages/Character.tsx
index 24769ff..b2a64ff 100644
--- a/frontend/src/pages/Character.tsx
+++ b/frontend/src/pages/Character.tsx
@@ -3,6 +3,7 @@ import { Icon } from '@iconify/react';
 import CharacterBadge from '../components/CharacterBadge';
 import { useState, useEffect, useRef, useCallback } from 'react';
 import { speechToText, characterChatMessage, getAudio } from '../logic/sdk';
+import { SyncLoader } from 'react-spinners';
 
 export default function Character() {
     const location = useLocation();
@@ -12,6 +13,8 @@ export default function Character() {
     type Message = { text: string, sender: string };
     const [messages, setMessages] = useState<Message[]>([]);
     const [isRecording, setIsRecording] = useState(false);
+    const [isLoading, setIsLoading] = useState(false);
+    const [isOtherLoading, setIsOtherLoading] = useState(false);
 
     let chunks = [] as any;
     const mediaRecorder = useRef<MediaRecorder | null>(null);
@@ -24,7 +27,7 @@ export default function Character() {
 
     useEffect(() => {
         scrollToBottom()
-    }, [messages]);
+    }, [messages, isLoading]);
 
     useEffect(() => {
         navigator.mediaDevices.getUserMedia({ audio: true }).then((stream) => {
@@ -35,12 +38,17 @@ export default function Character() {
     
             mediaRecorder.current.onstop = async (e) => {
                 setIsRecording(false);
+                setIsLoading(true);
                 const blob = new Blob(chunks, { type: 'audio/wav' });
                 chunks = [];
             
                 const audioFile = new File([blob], "audio.wav", { type: 'audio/wav' });
             
                 const text = await speechToText(audioFile);
+                setMessages(prevMessages => [...prevMessages, { text: text, sender: 'me' }]);
+                setIsLoading(false);
+
+                setIsOtherLoading(true);
                 const response = await characterChatMessage(sessionId, text);
                 const { msg, audio_id } = response;
                 const audioBlob = await getAudio(audio_id);
@@ -48,7 +56,8 @@ export default function Character() {
                 const audioUrl = URL.createObjectURL(audioFileResponse);
                 const audio = new Audio(audioUrl);
                 audio.play();
-                setMessages(prevMessages => [...prevMessages, { text: text, sender: 'me' }, { text: msg, sender: 'other' }]); 
+                setMessages(prevMessages => [...prevMessages, { text: msg, sender: 'other' }]);
+                setIsOtherLoading(false);
             }
         });
     }, []);
@@ -74,8 +83,8 @@ export default function Character() {
                     <h1 className="text-center">Talk With...</h1>
                     <CharacterBadge name={name} image={image} onClick={() => {}}/>
                     <div className="chat-area pb-10">
-                        {messages.length === 0 ? (
-                            <p className='subtext'>Please record a message to start the conversation.</p>
+                        {messages.length === 0 && !isLoading ? (
+                            <p className="text-center text-gray-400">Please record a message to start the conversation.</p>
                         ) : (
                             messages.map((message, index) => (
                                 <div key={index} className={`message ${message.sender}`}>
@@ -83,6 +92,28 @@ export default function Character() {
                                 </div>
                             ))
                         )}
+                        {isLoading && (
+                            <div className="message me">
+                                <SyncLoader
+                                    color="white"
+                                    loading={isLoading}
+                                    aria-label="Loading Spinner"
+                                    data-testid="loader"
+                                    size={10}
+                                />
+                            </div>
+                        )}
+                        {isOtherLoading && (
+                            <div className="message other">
+                                <SyncLoader
+                                    color="white"
+                                    loading={isOtherLoading}
+                                    aria-label="Loading Spinner"
+                                    data-testid="loader"
+                                    size={10}
+                                />
+                            </div>
+                        )}
                     </div>
                     <div ref={messageEndRef} />
                 </div>
diff --git a/frontend/src/pages/Lesson.tsx b/frontend/src/pages/Lesson.tsx
index 3c4d39c..8a0c699 100644
--- a/frontend/src/pages/Lesson.tsx
+++ b/frontend/src/pages/Lesson.tsx
@@ -5,6 +5,7 @@ import WrittenVocabularyExercise from "../components/WrittenVocabularyExercise"
 import VerbalQuestionsExercise from "../components/VerbalQuestionsExercise"
 import Progress from '../components/Progress';
 import VerbalPronunciationExercise from '../components/VerbalPronunciationExercise';
+import LessonComplete from '../components/LessonComplete';
 import {_Question, chapters_jp, Question} from "../logic/CourseData";
 import VideoExercise from "../components/VideoExercise";
 
@@ -24,27 +25,28 @@ export default function Lesson()
 
   const onSubmit = () =>
   {
-    if (currQuestion < questions.length - 1)
-      setCurrQuestion(currQuestion + 1);
-    else navigate(home);
+    setCurrQuestion(currQuestion + 1);
   }
 
   const renderQuestion = (currIndex: number) =>
   {
+    if (currIndex >= questions.length) {
+      return <LessonComplete home={home}/>;
+    }
     const chapter = 'Ordering food';
     const question: Question = questions[currQuestion];
     switch (question.type)
     {
       case 'written-question':
-        return <WrittenQuestionExercise q={question} chapter={chapter} onSubmit={onSubmit}/>;
+        return <WrittenQuestionExercise key={currQuestion} q={question} chapter={chapter} onSubmit={onSubmit}/>;
       case 'written-vocabulary':
-        return <WrittenVocabularyExercise q={question} onSubmit={onSubmit}/>;
+        return <WrittenVocabularyExercise key={currQuestion} q={question} onSubmit={onSubmit}/>;
       case 'verbal-question':
-        return <VerbalQuestionsExercise q={question} chapter={chapter} onSubmit={onSubmit}/>;
+        return <VerbalQuestionsExercise key={currQuestion} q={question} chapter={chapter} onSubmit={onSubmit}/>;
       case 'verbal-pronunciation':
-        return <VerbalPronunciationExercise q={question} chapter={chapter} onSubmit={onSubmit}/>;
+        return <VerbalPronunciationExercise key={currQuestion} q={question} chapter={chapter} onSubmit={onSubmit}/>;
       case 'video':
-        return <VideoExercise q={question} chapter={chapter} onSubmit={onSubmit}/>;
+        return <VideoExercise key={currQuestion} q={question} chapter={chapter} onSubmit={onSubmit}/>;
       default:
         return null;
     }
diff --git a/frontend/src/pages/UserChat.tsx b/frontend/src/pages/UserChat.tsx
index 19ac848..1130052 100644
--- a/frontend/src/pages/UserChat.tsx
+++ b/frontend/src/pages/UserChat.tsx
@@ -2,6 +2,7 @@ import { useLocation, useNavigate } from 'react-router-dom';
 import { Icon } from '@iconify/react';
 import { useState, useRef, useEffect } from 'react';
 import { humanChatMessage } from '../logic/sdk';
+import { SyncLoader } from 'react-spinners';
 
 export default function Character() {
     const location = useLocation();
@@ -11,6 +12,7 @@ export default function Character() {
     type Message = { text: string, sender: string };
     const [messages, setMessages] = useState<Message[]>([]);
     const [message, setMessage] = useState('');
+    const [isOtherLoading, setIsOtherLoading] = useState(false);
 
     const messageEndRef = useRef<HTMLDivElement>(null);
 
@@ -22,13 +24,16 @@ export default function Character() {
         scrollToBottom()
     }, [messages]);
 
-    const handleSendClick = () => {
+    const handleSendClick = async () => {
         if (message !== '') {
             setMessages(prevMessages => [...prevMessages, { text: message, sender: 'me' }]);
             setMessage('');
-            humanChatMessage(sessionId, message).then((response) => {
-                setMessages(prevMessages => [...prevMessages, { text: response.msg, sender: 'other' }]);
-            })
+
+            setIsOtherLoading(true);
+            const response = await humanChatMessage(sessionId, message);
+            const { msg } = response;
+            setMessages(prevMessages => [...prevMessages, { text: msg, sender: 'other' }]);
+            setIsOtherLoading(false);
         }
 
     }
@@ -55,6 +60,17 @@ export default function Character() {
                             </div>
                         ))
                     )}
+                    {isOtherLoading && (
+                        <div className="message other">
+                            <SyncLoader
+                                color="white"
+                                loading={isOtherLoading}
+                                aria-label="Loading Spinner"
+                                data-testid="loader"
+                                size={10}
+                            />
+                        </div>
+                    )}
                     <div ref={messageEndRef} />
                 </div>
             </div>