Enderport, being as its been 8 years since I was in grade 6, I don't have any resources to help you but I can give tips on studying. It really depends on the subject and your own personal study habits. For me, I tend to do practice problems and look up help online for things like Chemistry, Physics, or Math as this is the way I found I could best prepare myself for the exams. For classes about literature make sure you read the works assigned and perhaps write sticky notes with important notes or information and leave them attached to the page you thought of them. Also doing review questions or talking to friends about things regarding readings or literature helps because as you debate your take on the book/poem/paper/etc you get to think about it and also take in what other people think. Lastly for things like history, language, or biology or things with just generally a lot of information to know, I find that reading through my notes and making an outline of important information helps me. Another popular study technique for these subjects is making flash cards and practicing with them. Remember to take breaks as you study, get up to stretch your legs and drink lots of water and try to make sure you eat on schedule too.
If you need help revising specific things like papers you can always open up a private conversation with me and I will do my best to help you! I'm always down to give advice or help you guys with anything you need so hit me up if you need it.