HELP ME LORD!! PLEASE!!!!!?

I have to take the pert math exam at 5, in 5 hours. I thought I was ready but yesterday I studied and I realize I have a long way to go but I can't wait any longer because its summer and I will forget all of my algebra 2 from last year. I am forgetting at a rapid rate and I need a site where I can review the whole course, no downloading or paying for things. Please! I really don't want to fail, because as a dual enrollment student This decides whether I can go to the college or not. And I really want to go, but math is definitely a weak point of mine. Please????