I went to college, got my BA, but by chance fell into a totally different field . . . so in that sense, my career is self-taught.
I went to college for literature and thought I'd graduate and do something in journalism. After graduation while I was on the job hunt, I started tinkering with computers and web design / development as a hobby and a relative saw what I could do and mentioned that there were lots of paying jobs for doing exactly what I was doing at home for a hobby for.
So I started out entry-level and learned on-the-job. I was behind the ball on a lot of things since my co-workers either went to graphic design schools or college for computer science. I bought a lot of books and taught myself everything. I stayed at work late and stayed up at home even later because I genuinely enjoyed what I was doing and would have done it for free anyways.
Yes, it was hard, but it was something I enjoyed doing. So in fact, it wasn't really hard, it was more like a challenge since I kept wanting to make myself better.
I'm not rich, but, I made more money than I thought I'd make. But most of all, I made a career out of something I love doing.