My SAT scores are really bad.

I am in my senior year and I wasn’t planning to go to college in the United States because I didn’t live here and I had been prepping for CIE exams. I took the SAT for the first time and only got a 1500, and then took it right after and just got it up to 1620. My situation seems terrifying to me now that I cannot get into the best colleges. I don’t have time to take the SATs again and I was wondering if there’s a chance that I could get a 100% scholarship somewhere, maybe a private college. Thanks for reading!