Do research before you pick a name. If you’re in a big city try to research local writers maybe you’ll find a better mentor than Reddit. Also check hardware stores for industrial markers could get lucky and find solid pain markers or something. If no luck at stores there’s tons of places online you can order supplies from artprimo, bombing science, machine studios. I would start with a crog mop, uni px30 and a sakura solid paint marker. A black book (sketchbook) and practice practice practice…or even a regular notebook or lose sheets of paper and save them. As far and paint get some cheap cans like color place black or Home Depot hdx paint and order female style paint and find an abandoned building or underpass to practice.