Maybe retrain as a teacher and do private tuition in the mean time? The working hours will be better, it's rewarding work (not financially), probably quite a secure job and you can work on ad hoc projects/consulting on the side.
Every once in a while I think about it...
http://www.wgu.edu/education/teacher_certification
Basic Tuition for Most Programs is Just $2,890 Per Six-Month Term WGU charges tuition at a flat rate every six months, so you pay for the time, not the credit hours. Compare that with what other reputable, regionally accredited online universities charge, and you’ll discover WGU tuition is typically half the cost.