Have to memorize vocab
in any language?
Try Quizlet!
Math or chem?
PRACTICE PROBLEMS ARE YOUR FRIENDS.
And so are example problems in your textbook. (Better open up that book if you haven't in a while!)
And of course...
Don't forget that you have us and your teachers!
Email or ask your teachers about extra help. There's no teacher that wants you to fail their class. (And there's absolutely nothing wrong with asking!!) Also the School Counselors are always checking their emails so feel free to email anyone of them about getting a peer tutor.