You have already received great advice and suggestions. Here are a couple of more colleges you may want to check out:
In New York, look at Hofstra’s NOAH scholars program (financial aid for socioeconomically disadvantaged students) and PALS program (assistance for neurodivergent students). You may also want to check out Marquette in Milwaukee, which has an autism support program (On Your Marq). Marquette can be quite generous with financial aid. I don’t believe these two schools have dedicated botany majors, so you would have to study straight biology.
Large public schools can be very welcoming of neurodivergent students and offer great support services. They also tend to have the botany programs you are interested in. One such school you should check out is University of Illinois @ Urbana-Champaigne, which has free support services for ASD students. Out-of-state public schools are very pricey, but with your background you may qualify for substantial aid. You’ll never know unless you apply.
I know your SAT score isn’t what you want it to be (yet!), but you have great stats and you should be very proud of your grades and achievements so far.