[HELP] Scholarship & SAT

I'm from the HSC 2024 (Science) batch and I want to study at KFUPM (King Fahd University of Petroleum and Minerals). Afaik to get a full funded scholarship I just need to focus on the SAT, and a 1500+ score gives a high chance for a BSc in CS.

For some background, I never studied seriously in college at all. I was a very good student until SSC but idk what happened to me. I failed every college exam in 1 or 2 subjects cause I didn't study. But for the HSC, I prepped for one week and got an A+. rn I don't know anything about HSC math or physics so my foundation is a bit off and I need to fix it.

This is my first time taking the SAT. Which course should I do? I found Khan Academy (seems outdated) and two other paid courses that are up to $5K USD, plus the Dipro Prottoy course. I'm sure there are more.

I'm looking for a course that's great for going from basic to advanced with really good teaching. Something with a high chance of helping me get 1500+. I know it depends on me, but the teacher is also a big part of it.