Just finished tutoring a guy for the CLEP in college math.
It’s called college math, but the material is mostly elementary and high school level. So don’t worry.And 50 is passing!
Mark your exam date on your calendar, give yourself several days beforehand to take practice tests, then divide the total number of math pages by the number of days remaining (excluding Shabbos and yom tov) and check off each calendar day as you complete the set pages.
There are also tutorials online on different topics if you ever get stuck on one.
Treat the other subjects the same way.
Enjoy the ride learning about Hashem’s world! It’s really fascinating!