Should I retake the SAT?

Yes, and lower your standards. Unless the 1500 was some sort of freak accident, you aren't getting anywhere near top 20 without putting down an ungodly amount of money.

Also,
>SAT
>Instead of ACT

Definitely won't keep you from getting in. For the very top schools you need to be an Intel finalist or something special but when you get closer to 20 and beyond the score would probably be enough along with decent grades and extracurriculars. Also if you scored like that on PSAT and got national merit just go somewhere for free. And if you're poor you can spam apply common app with waivers and make sure to apply to some schools that are lower than top 20 but still meet full need. Liberal arts schools are a good way to get lots of financial aid if you're poor and can't get into an ivy.

>>18114569
SAT is no longer out of 2400. Two 750s means missing no more than a couple answers in each section. Probabaly better ways to spend time than trying to go from one wrong to perfection on 100 question test.

>>18114627
Ah, sorry. Didn't know they changed it. My bad.