This really helped me, and might not work for you. But instead of trying to 'aim' I just started focusing on holding. Instead of thinking that aim is something that you actively do, think of it like trying to catch eggs in a basket, making sure the enemy comes into your crosshair instead of moving towards the enemies head. This might just be all non sensical yap that only makes sense to me but at the bare minimum I have the stats to say I'm not completely schizo
https://tracker.gg/valorant/profile/riot/Aayan%232005/overview
(Also I'm lower rank than you so I could just be waffling)
I also kind of forced my self to never hit the body, even if it was easier or if it would get me the kill. If I had to spray to kill the body I would just let the enemy kill me. (Now this might be considered trolling since it's probably at the expense of your team, but long term it really helped me discipline on to the head)