Did I screw up my future to become a pilot?

Get the degree and an engineering job so you can afford to pay for flight training. And no, you do not get a job as a bush pilot right out of flight school because that requires as much or more experience as it does to get hired by a regional airline, only of a slightly different type. I've been there and done both. As for working as an engineer and flying part time, instructing on weekends is one of the few possibilities (or towing gliders, or banners, or jumpers, or local sightseeing tours) but any second job would be tough to hold down if you also want to have some time off, a personal life and perhaps start a family. By the way, it is spelled college, not collage. Better fix that before you start applying for admission.