That's great that you have that goal in mind, but I would definitely work on a backup too. Music is not terribly lucrative, but technology is. I can't recommend programming, software development, and comp sci enough. I went for a more technical job and still do my writing on the side. I would love to write for a living, but that's a field, like music, it requires an incredible amount of luck to become really successful in it. The nice thing too is that learning a technical skill helps you with your artistic pursuits too. I can write programs that actually help me with my creative writing (and I have). It's something to consider.

It's important to make sure you set those short term goals so that you can achieve those broader goals. You might not become wealthy beyond all imagination, but that doesn't mean you can't become financially secure. You can discourage yourself by setting too many goals too high right away and not pacing yourself and I don't want to see that.

I can definitely see you have a lot of passion and I think that's great! Just don't lose sight of the next step you need to take. If you have a daughter too, you definitely want to make sure you can take some time out to be there for her, you know, set a positive example for her and show her how to become a responsible adult, though you really are just learning that for yourself. It's challenging, but I'm sure you'll be able to figure it out.