How to be a full-time photographer/videographer?

I'm 19. I've been working in cabinetmaking for four years now and it's left me depressed. It's well paying, but it's a negative work environment and I just want to be a filmmaker. But I'd be just as happy being a photographer and videographer, and make a living from it. I've directed, shot and edited four music videos this year (for $100 each) and I'm working on a short film right now. I work with a Canon 600D and Panasonic GH4. Can anyone help me figure out a way to successfully become a full-time photographer/videographer? I'm hired for two weddings coming next year ($500 each -- they're my first weddings so I'm not charging a lot), but I would like more consistent work.