I majored in one of the STEM fields that doesn't pay any money (chemistry), and now I do the computer stuff for a living and to make money. Given how I did the whole "do STEM and you'll never be wrong route" and it was wrong... Well, I wish I had spent those 4 years at college reading philosophy works and studying the classics. I'd probably still be in the same place I am now, but at least I wouldn't have spent 1000+ hours in a lab to get here.