I play valorant alot but still dont know how to play well. my aim is decent but i think my decision making is bad. is there a streamer i should watch to get better?

Came across a team of 5 playing a game of "protect the president", where in this case the Reyna was the only player supposed to get kills. All of them seemed to be playing legit, and our team all being in a discord call had a fun time. They...