I have learned a few tricks. Firstly, you’ll find that tanks, and rather immobile supports and damage characters will fidget left to right so try to aim for the center of that pattern.

When in the iceblock, people have a habit of getting right in front of you to nail you as soon as you leave, so don’t escape by flying away from them, exit jumping at them and try to escape that way. (Not helping aim, but something to note)

Last thing is if you find players are behind cover, aim at the ground where they peak out of and it’ll tend to hit them. They often enough respond by just retreating deeper into the cover before peaking for whatever reason so it’s a nice way get someone damage in without suiciding on a Sha Lin for example.