Start finding spare time to devote to your hobby or interest. Don’t expect your hobby to make you rich or famous. If that happens is great; if it’s not, that’s all fine. Because you are doing for yourself.
Let’s say you want to be a fiction writer or Youtuber to cover coffee shops around the world, don’t quit your day job to pursue your dream. Just do it for fun, for yourself. In the meantime, keep your day job to pay your bills and keep the roof over your head.