As someone who has a degree and spent years at Uni, I can say it doesn't matter if you have a degree or not, I know a lot of people in the "real world" of an office who can tell you exactly what needs to be done, but when it comes down to actually doing it, wouldn't know their arse from elbow.
With my own projects, I could have made much more progress if I just paid to have things done. But I don't get much satisfaction out of that. I prefer to attempt it, discover it costs me more to do it than if I paid someone and end up with a slightly less ideal finish, but have learnt something. I know with my panel beating work that's the case. :).
I am still yearning to have the space you do in the future. So I can set up a proper workshop with the tools I want / need. Working on cars can be frustrating especially when you get stuck, but as soon as you learn how to do things you start to enjoy it and get a thrill out of fixing stuff. What I like about Oxy welding is that I really struggled with it (still do) but as you get better at it, it's very satisfying.