S on rakan
So i recently started playing a lot of rakan and got lvl 6 with him. At the same day I got a first lvl 7 token but suddenly it felt harder and harder. I mean I got like 4 times an S and a S+ when beeing mastery 5-6 but now I always get either a b+ or S-. Should I be maybe a bit more selfish in games? I sometimes try to help to much and die but mostly I keep a kda of about 2/2/20 or 7/5/19