If you take the time to look at Federal job offerings, you will find that most above en entry pay-grade require either a Degree (often doesn't matter what, only that you have one generally relevant) OR years doing that job at a lesser grade.
Maybe that statement doesn't make sense, but look at USAjobs.gov and you'll see exactly what I'm talking about.
I'm planning on adding Flight training to several other classes and courses that I've had to take over the last couple decades to parlay into a BS degree, just to be able to move up/out from where I'm at now.
IF the A&P Licenses is easy enough to get now with your history, then get it and use it to keep yourself afloat while you get that Bachelors degree: Keep this in mind it's easier to find a job when you have one, and there are a shit load of twenty somethings out there with a degree that are flipping burgers, because they don't know how to fix/build/make/repair/etc. Even a basic mechanic can find work that'll pay the bills without servicing somebody that does.