Answer:
''I will do more studies from today and keep less time with my friends and avoid other time wasting activities''
Step-by-step explanation:
If I realized my mistake, then I replied to my mother with the answer that ''I will do more studies from today and keep less time with my friends and avoid other time wasting activities'' while on the other hand if I did not realized my mistake, then my answer will be that ''leave me mom, this my life and I know what is better for me and what is not, don't worry about my studies and for my future.