This is good advice from the Jag here, U&A.
Study something part time by distance education while you are working. I probably wouldn't bother with a formal Aviation qualification.
Do something useful and adaptable like accounting, business administration, marketing, teaching or IT. Give yourself another career option as well as improving your education.
Aviation is all fine while you have a steady job, no family and you are happy to go and work anywhere...but will this always be the case??
...And if the answer to that is "yes" then a degree in something else will still look great on the CV and be useful if you ever move into (God help you) Aviation management ...
