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

So recently I got put on to valorant by my younger brother. Ive been getting absolutely waxed for about a week. I've been putting some time into aimlabs in the hopes to improve my reaction times, and just mouse control in general. I guess I...