Have you considered trying out something with less of a commitment, like starting-up with an offce staffing agency? Like OfficeTeam/Robert Half Int'l?
I used to make pretty decent money working via a staffing company during summers between academic years in college. At first, it was a little intimidating to walk into a random workplace and just be expected to get-up-to-speed... But after my first few assignments it got a lot easier. Most of the time the jobs were shuffling papers or populating a database. Occasionally, I'd be answering phones. I'm a pretty outgoing person and speak clearly so the staffing agency liked to try to get me answering phones, which I didn't really enjoy, but I easily could have declined those temp jobs if I really wanted to.
Over the years, I frequently got asked to return to previous workplaces where I had done good work temping, so if it was a place I liked then I'd agree, but if I didn't like the place then I would turn down the contract.
Eventually, I ended up with a 2-day temp job, that got extended to 6-weeks, and ended up going on for over 8 months. It ultimately ended up being a pretty good gig coordinating expat financial services on behalf of a large finance company. Ultimately, they offered me a permanent position (benefits, PTO, retirement etc) after about 1 year. I eventually left that company to return to school, and while I'm happy with that decision, I probably could have had a full career working with that one company... and it was all from a 2-day temp gig.