A good preparation is really important
Fist turn the story into a script
Then collect as much reference material for the scenes as necessary / possible
. Examples: reference for the locations, poses, 3d models of the locations,
there are many options, depends on the story
Make character sheets for every character. When you can´t draw then use a
character creation app or a game where you can creater characters (the sims for example)
There are also many options, many ways to do this
When you got all of this then turn the script into thumbnails.
Thumbnails into pencils, into ink, then lettering.
You need almost zero money when you draw the comic traditionally. I did
my first 1000 pages that way. Copy paper from the company where my dad
worked. Pencils, pens. You can get pencils for free when you know how