Help! Need to take the SAT and feel unprepared!

I’m approaching my fourth year of enlistment in the USAF and I’ve decided to pursue my dream of becoming an officer. (prefer USAF, but will be happy just being an officer) Beginning in August, my fourth year of enlistment begins and so does the countdown until separation. I’m looking into applying to schools in my home state of Georgia. The problem is, I’ve never taken the SAT and I’ve completely forgotten all the math involved in standardized testing! I struggled with math throughout high school, and I need to figure out how to be prepared for the SAT as well as college level math. My written and verbal skills are rusty, but I think I’ll be alright with those. However, review would be nice.

How can I learn the skills needed to pass the SAT and survive in college to make the cut for ROTC?