Dear Mike：
I have recieved your letter,you said that you don't have enough time and your parents are not pleased to you.I know you like playing basketball.It's a good exersice.But if you don't want to be a basketball player,I think you should do homework first then play basketball.Your homework isn't very diffcult,is it?Then you must talk with your parents.They will know your dream and you may know them well then.Those are my suggestions.
Hope your letter
Best wishes
Ming