What do you do to prepare for a test?

My prof doesn't use the online resource that I purchased.  I can use the self-study section but it doesn't really cover the same material.

What do you do to prepare for a test when your teacher doesn't really give you an idea of what to study except for a basic review guide for the class?  This is very generic but the review questions in class were much more complicated in comparison.  We covered 3 chapters of Campbell's Biology 9th edition in 2 weeks. 

Test is today so it's really to help me on the next exams.

I've studied like crazy but not sure what to do.  I've written tons of practice questions using the text, lecture notes, outlines, online, etc. but still don't feel ready.

I don't really want to buy a test bank as that doesn't feel right to me personally.

Any advice is welcomed.