Some basic you should follow is:

1.  Enroll in a wide range of classes and eventually all the classes

2. Study Hard. Passing you're tests is a key rule you will want to follow. You will need to get 70% or more in all youre classes to advance to you're second year

3. Get a good reputation. Make friends in HOGWARTS, it will help you HEAPS. Also get real like friends usernames to add them!!

4. Borrow books. Borrowing books will help you study and get good marks

5. Read the lessons thoroughly and carefully, professors will normally give you pointers/tips and what books to borrow to help you with you're class