How to learn without a formal structure

A little background: I'm an electrical engineer, which is a field that doesn't really have a lot of remote opportunities - all the remote opportunities are in software and I'd really like to be able to access more remote opportunities in the future.

However, post-school, I'm finding I'm a really terrible learner without formal structure (school/mentorship/a job that forces you to learn). I can't keep up the motivation to get past a certain level. That level seems to be around where I know enough to build simple system, but would need an actual job to learn (or force me) to do things more professionally, polished, abstracted, and structured. I've done a lot of school (up to masters), so I don't want to go back to school. What I'd really like is to just be thrown in over my head with solid patient mentorship. Is there some sort of site to connect with people to help them build things? I essentially want to trade my time + eagerness to learn (and learn how to do it professionally and correct) for some mentorship.

Willing to learn anything that has a lot of remote opportunities, but for some reason I am drawn to react + node js since it seems like a simple set of frameworks to learn to build a full "thing".