How can I learn Calculus on my own?

Question

Next semester I'm going to take it, but I would like to be familiar with it to get the best possible grade.

Answer 1

The best book you can get for self study is the Schaums Outline book on calculus. Many many solved problems. Soft cover, not expensive. You can probably find a used one if you like. Go here:

http://www.praxisiimath.com/schaums.html

Answer 2

You can underpin Calculus by practising trigonometry or the Binomial Theorem or the Concept of Limit depending upon the
level that you wish to attain to.
It's a good idea to become familiar with indices e.g.
that you know that a root is a fractional power so,
2^1/2 is the square root of 2. Learn the laws of indices.