[Newbie] Few questions after reading around

Living life pretty rough now, basically living off credit, so i cant jump around experimenting with domains here and there

so many methods here my head is going to explode, but i was hoping people who have tried many things, could give me a point in the right direction with a 0 startup cost? lol i know beggers cant be choosers

i dabbled in web design here and there when i was young, so maybe we'll make our way towards a more profitable method after gaining some initial cash.

i have a youtube chael about gaming (LoL) that i abandoned while i was doing physical work. about 2k+ subs, videos ranging from 10k-150k+ views, perhaps somebody more acquainted with youtube+blog money can give a few tips?

TL;DR - what would be the best startup method for somebody without "experimenting" by throwing money in different directions?

hope im not asking for much, i will post my jouey if somebody helps the startup for the bigger picture :3