In the vein of asking personal questions of Less Wrong, I need career advice. Or advice on finding useful career advice.

I'm an undergraduate student, my course is "Mathematics & Theoretical Physics", BSc, but I'm already convinced I don't want to try to be a career scientist. Long-term, my career goals are to retire early (I've felt comfortable enough on what I live on as a student that the MrMoneyMustache approach seems eminently doable), with the actual terminal values involved being enjoyment and lack of stress, so becoming a quant also seems like a bad choice what with having to get a PhD first. Teaching just sounds horrible to me.

What this leaves me with is the much broader range of careers that are either mathematical or sciencey enough that I could use the degree for them, or the jobs and graduate programs that just ask for a degree and don't care what kind. I have too many choices, every particular one I look at seems okay but not great, I have no idea how to even begin narrowing them down or ordering them.