I'm currently in diamond elo, last game i was in full ex-immortal lobby. My teammate decides to leave on half, we somehow manage to pull out to 11:13 , and it's ok, gg. I was top fragging with kj, how is possible for me to lose 22 elo from...

I have been playing the game for three months now and I know I have a lot to work on, like my aim,and reaction time and stuff, however I typically play Unrated, more than Ranked because I play solo most of the time, and nobody really talks....