Your question is Overfitting Diagnosis and Fixes. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
What is overfitting, how do you identify it, and how do you correct it?
Explain the concept using a supervised learning example and describe practical evidence from training, validation, and test performance. Cover at least two corrective techniques, including when each technique is appropriate, and distinguish overfitting from underfitting and data leakage.