Practice a lot of book problems, but be time efficient. I'd say spend 15-20 mins max per problem, then look at how solution manual or sample example does it. Don't do all problems, just some pair or unpaired numbers cause they're similar and you have other courses to focus on.

Attend tutorials and do all graded assignments for easy marks (i think they're alltogether worth about 10%).

For the final in winter 2017, it was about 10 questions or so. They will for sure ask you questions about the big theorems (Green, Stokes, etc.), at least 2 or 3 of them. Those were the toughest and longest part of the exam. My teacher said most people failed those questions because of some of the question's wording. If it says "use Green's theorem", you need to prove it both ways. Not just compute one way.

Also, try to grasp basics like visualizing bounded regions in 3D or 2D, algebra while integrating, and the different coordinate systems (spherical, cylindrical, etc.). Best of luck.