invic

well there are big topics that get tested more often than others, but level 1 is like a "vocab test" where it can cover anything in the books. But if you feel ready for practice problems then have at it,what's the point in waiting? You CAN re-use practice tests/problems, albeit it might not be quite the same, but if you don't write the whole answer in the problem the first time then you can redo and redo and redo. The best advice I have is to start doing practice problems/tests and take them over and over again as many times as possible.