U have to learn the first step by watching vedios on YouTube
To have a wide imagination, and more importantly, to learn how to be your hand and the pen, one person.What would you put?
Get paper and a pencil. If you can't think of anything to draw, find something to draw. If you need tips, I'd ask someone who is especially good at it, or you can find how to draw specific things online(Google).How to draw sonic the hedgehog?