Starting from here

src/Lesson.java

@@ -34,12 +34,7 @@ public class Lesson {
         return lessonTitle;
     }
 
-    /**
-     * This method also sets lesson complete to true as it
-     * @return String containing Lesson Text
-     */
     public String getLessonText() {
-        this.lessonCompleted = true;
         return lessonText;
     }
 
@@ -68,6 +63,8 @@ public class Lesson {
         this.quizScore = quizScore;
     }
 
+
+
     public void replace(boolean lessonCompleted, boolean quizCompleted, int quizScore){
         this.lessonCompleted = lessonCompleted;
         this.quizCompleted = quizCompleted;
@@ -91,7 +88,6 @@ public class Lesson {
      * @return total correct user answers
      */
     public int doQuiz() {
-        this.quizCompleted = true;
         int correctAnswers = 0;
         int questionsAnswered = 0;
 

src/QuizSystem.java

@@ -34,6 +34,7 @@ public class QuizSystem {
 
 //        User takes the LESSON
             System.out.println(chosenLesson.getLessonText());
+            chosenLesson.setLessonCompleted(true);
 
 //    Ask user if they want to do QUIZ
             System.out.println("Would you like to do the quiz now? (y or n)");
@@ -43,6 +44,7 @@ public class QuizSystem {
             if (nextString.equals("y")) {
 
                chosenLesson.setQuizScore(chosenLesson.doQuiz());
+               chosenLesson.setQuizCompleted(true);
                 System.out.println("Please enter your name to record that you have completed the lesson and the quiz");
                 userName = ScannerExtension.scanString();
                 System.out.println("Record of completion and Score saved under username: " + userName);