I am gonna try learn 1 agent better and rank up with it.
UBClears [#10]If you get good at Yoru then you'll climb to Immortal pretty easily. Think about it, you never see any good Yorus in diamond and below because all the good Yorus are Immortal+
you never see any yoru's in diamond because they're all hardstuck gold
Jett and clove. The key is not really the agent choices but dont undervalue ur life and taking a free 50/50 1v1. Instead, bait ur teammate and only go for straight 1v1 if u have an advantage (play around team util or using stuff like iso shield or jett knives/op). Jett is the agent for solo queue cus u can learn how to take a timing and get out with her dash (mostly a free pick)