Alot of my peers have started playing lol, and me being a csgo pleb, i have no idea about the game, or any other moba as a matter a fact. Any useful links and videos etc would be appreciated. Dota 2 aswell.
Watch streamers for tips, depending on what lane/role you enjoy the most it will be of varying difficulty. You need to learn each champions mechanics, learn the enemies cooldowns and animations to do relatively good in ranked.
P.S. don't play ranked until you have runes/confidence in multiple roles. Goodluck.