I want to make a comic!

Ok I know every artist out there wants to make a comic and such, but I've been planning this for years.

Idk why I avoid it so much, is like, I create the characters, every character has a deep story behind, motivs, and common things to build a character.

Same with the world building.

But somehow I find hard to sit and make it, I got a lot of complex question before making a single page, and this consume almost all my (non) existent energy.

I mean, for some people this might be stupid Ik, lI have this thing about the more basic questions to the more complex ones (I think), such as "What size should I choose?" or "How can I organize the panels?", or "Do I want to paint everything with the oficial colors or make it look like a manga?", "What art style should I use, anime or cartoon?, or both?". I know all of this questions are only important to me but, what about other comic artists? Do you question this much about your own workflow?