The most common question I am asked by student filmmakers is "how will I support myself while trying to become a filmmaker?" And I give the same answer every time: if you are worried more about paying bills than making films, you will become a bill-payer before you'll ever become a filmmaker.
Filmmakers worry about making films and somehow their bills get paid. They take day jobs as waiters or pizza deliverymen or teachers or anything at all so they can focus on making movies. Their bills get paid but, ultimately, they don't care how they get paid. Because they're too damn worried about making the next movie.
Your priorities will dictate your future to a significant degree. If you really want to be a filmmaker, you have to make it first priority. Trust me, somehow your bills will get paid.