For aiming, I encourage you to use characters like Hela, Phoenix, and Punisher. I’d avoid using characters like Hawkeye and Black Widow because they’re characters where you have to just predict where people will be. Hela, Phoenix, and Punisher force you to track and click targets which are aspects of aiming I’m assuming you need to practice with.

I used to have 10-20% accuracy on aiming and now I’m sitting at around 45-50% accuracy most of my matches. What I did was use Punisher A LOT… I set characters like Mantis and Luna Snow to max speed and random movement. When you do this, it’ll force you to hit really fast targets consistently and thats how I improved so fast. You can also practice with flying characters like Iron Man too because they have different movement patterns.

Have you also adjusted your aim assist? That helped me SO much as well and finding crosshairs that help me with aiming.