Make sure that you're not in classes that are too difficult, either. It's great to challenge yourself, but taking advanced math if you barely passed last year probably isn't a good idea.
[header] How to graduate grade 12 [title] Ensure that you're taking the right courses. [step] When you get your list of classes, double-check to make sure that they're what you wanted, and what you can handle. Some high schools actually recommend not having a full course load and leaving yourself a spare block in grade 12 so that you're not overwhelmed.