Degree and career advice

[gicts]

I work way too hard for way too little and there's no end in site, so I've come to the conclusion it's time to go back to school.

Right now I do web dev for a large company and I'm at the end of my rope. It's just data entry and I come home everyday exhausted and frustrated. I've been applying to other jobs for 2 years without success, and I'm not in love with the career.

Myers Briggs pegs me as an ISTP. I enjoy creative or constructive skills on a freelance basis and am very weak on long-term planning abilities. I'm the guy who doesn't plan and gets a thrill out of improvising.

If I had a mulligan, I would have tried to get into a mechanical engineering program. I daydream of doing something with my hands and being outdoors. Lately it has been carpentry, but it is always changing. I used to be a paramedic and enjoyed it, but the paychecks wouldn't cut it.

My heart says to quit and learn a trade, but my head says I'll be disappointed like I was when I was a paramedic. I've tried to start several businesses, but have trouble keeping things going.

Ideally, I guess I'm hoping there is an advanced degree that could help position me to do consulting or freelance work that would pay the bills and get me out from behind this 9-5 cubicle every day. I get a kick out of permaculture (sustainable lifestyles), so I've been looking for an inexpensive online Masters in Sustainability. I've also contemplated law school or trying to do prereqs for a DO application, and even archaeology (childhood hobby)

I know I'm a bit of a scattered mess, but any suggestions or resources would be greatly appreciated.

Background
29 years old
BS Justice Administration (2009, 2.2?GPA) ... after going to 4 colleges
AAS Emergency Management (2010, 4.0 GPA)
5 years experience as a Paramedic
3 years experience in web dev/digital marketing