@lessonwitch2 The OP is a rising senior and will be applying to colleges in the fall. Most places should accept the old SAT and that is a superb score. If for some reason that’s not the case, OP can retake the SAT and will probably get a similar result. There is no reason to take the ACT.
OP: if you are maxed out, keep doing what you’re doing, keep up your GPA, and be proud of that fact that you work to earn needed income. Be kind to others and to yourself and you will do fine! If you want to take up an EC, do something that makes sense - something you genuinely enjoy and can sustain, given the time restrictions you face.
@Mojori Look for schools that promise to meet full need - you have already identified some good reaches - but make sure you have some safeties like an in-state public school and at least one for sure financial safety. The schools that are on the yolasite that have already been recommended to you are a good place to start.
Best of luck - you sound like a smart, hardworking, responsible person!