I chose mechanical engineering as a major, but liked physics and math better so I changed my major the last year, then git disgusted and quit halfway through my senior year. I went to work for a major aerospace company for several years to immerse myself in the field, hated it, quit, and put myself through and automotive service program at a junior college while apprenticing at a dealership. Still plying my trade after several slight detours to heavy trucks, parts, and even worked in a custom cabinet shop for a while, no regrets about quitting my undergrad program and never for a minute considered going back to college.