1. Get stable Internet connection. No one wants to get a leave just because of a dc
2. Master your favorite champion. (preferably you can play 1 champ extremely good on one lane)
3. Correct item builds. (there are so many sites where you can look that up but some people still build shit)
4. don't play on when you are on a huge losing streak. it just gets in your head and you play worse. (just netflix and chill or masturbate if you cant find a boy/girl you ugly cunt)
5. stay calm in every ranked game. don't rage.
6. the more you play the higher you will get if you play better than the others. (you just have to win 51% of your games to rank up. but you have to play a lot of games then.)