4 AP Tests Help

I am taking: APUSH, AP Lang, AP Calculus BC, AP Physics 1
I got A’s in all my classes, but the material is really fuzzy.
I haven’t done that much prep at all.

You think if I finish all my review books and take some practice tests, that I can get 5’s on all of them?

Update: 5s on AP Lang, BC, and US History. and a stupid 3 on physics 1

Whats your secret