Pick a career change for me!

I'm 27, male with 0 debt and no obligations (family or mortgage etc)

I never went to college or university because of some stuff that went awry in my life. Just a hs graduate.

I have a stable job that pays $40k. It's good enough for me but .. meh.

I need a career change. But don't just toss up stuff, tell me how to go about it to get the job, like where would I need to go (study or apprenticeship) or which degrees or diplomas should I get. I also saved up quite a bit of money so no problems there.

I've never been interested in anything really, I hate interacting with people (especially stupid people) and I'm physically weak.

I know I left that extremely vague but let me hear some interesting ideas.

Thanks.