Is there a videos series that helps low elo players learn the more advance things for league?

All i hear from pros are to watch pros and copy them. That doesn't help if you have not idea of how stats works. I've read up some stuff about how stats works, but that shit is confusing as fuck when applied in game. Is there a video series that helps with learning all that small detail or are we just fucked? Im tired of just hearing "get gud" and not know how to get better at the game. Also, i tilt hard and know that i tilt because lack of understanding the game. I've watch some of Trick2G's subwars and learned some stuff from there. But I want numbers on stats and how that works explained to me.