Rad Therapy/ Dosimetry

Im currently in a radiation therapy program, and while I do think this is a good career choice temporarily, the more I’m learning about it, the more I realize how much better Dosimetry would be a better fit for my personality and day-to-day work life. I do NOT have a bachelor degree and am not in a location where dosi school is available at my doorstep. does anyone have advice for what the best pathway would be to potentially continue an online bachelor degree while I work as a RT, or simply just pursuing a bachelors in Dosi without having to move? I am in Alabama. the hardest thing about that career is the limitations you have in pursuing it.