What if I hate my field and would definitely be required to get a degree I can't afford to get to be hired at the very bottom of the only field I think I might not be miserable in?

Some public libraries and business organizations offer free courses in many fields, with certificates upon completion. They could be classes that would be included to earn a degree and may become transferable college credit. A certificate could be the beginning to getting your foot in the door. Add to the certificate some volunteer work experience in the field. Submit this on your resume and gain contacts from your free certificate training and volunteer experiences that you might want to use for job references. Talk with your new contacts for tips on how they got started. Present all these at the interview for an entry position in your new field of work.