French begginer asking for advices for 2D Fighting

Hi guys, I’m French, and i want to make a 2D Fighting game, like BlazBlue, GuiltyGear, Old School StreetFighter 2/3 etc, in HD but pixelart, and i don’t know how to start, can someone give me some advices ? Pref in french because of my english…cause he’s really bad.

Thanks guys.