Those already in a job:
→ Keep your daytime job but keep working on stuff you really care about.
→ Yes, it has to be your passion otherwise you will only feel like shit all the time.
→ However small, start today, you don't have to be perfect.
→ Gather knowledge and experience in the side-thing along-side your job as much as you can.
→ Spare no time. This matters more than your life. Because finding your passion decends to more than your life not just what you did while you were alive.
Those looking for a job:
→ TODO