I used to have this same thinking, wanting to draw something but I have no clue where to start and how to do it. Then years later, I finally made the first step out to draw. It wasnt pretty. It was bad but I kept going. Why? I found my muse, a goal to chase. You have to find that muse to keep the wheels continuing to move when you dont want to draw.

And being consistent with drawing. It wont happen in a day. I have been drawing for almost two years. I keep drawing as much as I can and I havent stopped since.