I finished my bachelors degree while deployed to Afghanistan. I did it working 14-16 hours days, zero days off, for 9 months straight. I did all the classwork in the evenings (or mornings if I was on a night schedule) after shift and with crappy internet connection. As far as workload goes, I was doing 6 or 9 credit hours at a time.

You can 100% handle it as a regional pilot. Start easy, one or two classes, and scale up if you’re able to handle it without burning yourself out.