If you want to learn how to make a film, you can go to film school.
Or you can just make a film.
Either way, your first one, at best, is going to show some promise. Maybe, if you’re Bob Dylan, or Quentin Tarantino, it’ll be a masterpiece – but that’s generally not the way it works. And that’s ok…
I guess my point here is this: You’re never going to be ready, so you may as well just fucking jump in.
It’s what you wanted to do anyway. You’ll figure it out as you go.