How do you study notes the right way?
This is in my opinion.
Read the notes over then ask your self questions.
How to study flashcards the right way?
This is in my opinion.
Read the flash cards then do what you think, then when you are done with doing the flash cards read them again and do what you know.
How to study math work sheets?
This is in my opinion.
First cover the answer.Then do them.Last look and see if you got the answers correct by uncovering the sheet.
Now think how do you study? “only answer once if seen again”
The answer is up to you?