There is a common notion that to do what you love you have to first quit what you’re doing. This is false, and almost always a bad idea.
If you work at a bar but really want to be a musician you don’t need to quit so you can start playing gigs. Just start playing gigs. You can do something small each day to help you get closer, even if you work a lot of hours. Take an hour before bed a few nights to setup a website. Another night you can spend an hour contacting club owners and asking about playing there. The number of things you can do is endless, but quitting your “day job” needn’t be one…at least not yet.
I met a young lady recently who was passionate about teaching. She was in a graduate program for teaching, but wasn’t really enjoying it and felt it was going to be so long before she could finish and actually teach. Maybe she should quit school, maybe not. But really she didn’t need to make that decision yet. She could immediately, without quitting anything, research young people in need of tutoring and start offering her services. If she discovered a lot of demand and found it fulfilling, she could do more and at some point perhaps quit her other less valuable activities to go even harder after it.
Too often we separate ideas and experiences. We treat our ideas or inspirations as intellectual playthings, to refine and dream about, but only to act on if lightening strikes and we can make a risk-free move to doing it full time. It’s probably not going to happen. Instead, make action just as much a part of the discovery process as thinking. Test the waters. Get stuff moving.
The main thing is just to start. Don’t let whatever you’re doing now be a reason not to do something you love. You can start building your new path while walking the one you’re on.