If you make National Merit Finalist and list Wustl as your first college choice, you can get merit money from that for 4 consecutive years.
Definitely apply for Mylonas/Nemerov scholarships, what have you got to lose?
An ACT of 35 is enough. No need to waste your time to try to improve by 1 point. Use that time for writing your college essays.
Best of luck to you!