Do you habe some problems in your study?If you do,I will give you some advice
First,you should read more books.It will improve your read ability.It help you increase your knowledge.
Second,you should listen to teachers carefully in your class.It is very important .It's up to you are good student or not.
Third,you should review your classes when you at home.and so on...
I think these advice is enough to be a good learner.