Chance a rising senior for Yale (or Harvard?) REA + my reaches [3.77 GPA, 1560 SAT, <$10k, economics+CS/math/datasci]

Chance Me / Match Me
4

If you can afford $10k ish per year why are you applying to target schools that cost $90k per year? Are there no affordable schools in view? It seems you are relying (expecting?) on some charitable good fortune to come your way.