I finally got rid of my heavy finger habit when shooting and finally learned how to stay calm and just click with vandal and phantom. But there are fights that i take where i do aim properly but still lose even though the person im taking...

I am stuck in diamond from episode 1 act 2 ,I feel like I cannot improve anymore, honestly I have given up on reaching immortal. I reach diamond easily every act, but after that I don't know what happens I can't rankup above that .Pls help