I think the best choice for you is still in tech. unless you really hate it. dont worry about future salary as you dont have much choice now anyway. engineering seems like a dead end either now or sooner.

as for tech, most dont care if you have a degree or not, as long as you have the technical capabilities. but you must tempered you expectation. if you condition dont improve and you dont make improvement yourself, sooner or later you gonna hit a wall. like others said, if you moving up the ladder, definitely there will be more interaction needed. even if you dont move to leadership role, just being a senior, you are suppose to be able to guide others technically.

meanwhile, try to think what you can do as a side hustle that dont need interaction. all i can think of is to write in medium.com/, where you can write articles, stories and your thoughts like a blog and earn from there.

I know a forummer here that is earning quite a bit writing there. best thing is, you can hide behind it.