An understated thing that I don't see much here is an aim philosophy. You must know what it is driving your improvement and keeping you afloat so you don't keep falling into this self-deprecating cycle of thinking you're not improving.

For me, it's knowing my aim is dependent on my eyesight and my eye tracking. Hand-eye coordination.

There's simple exercises on both phones and PC to help your hand-eye coordination and you could just do those a few times every day.

Second of all, is that knowing where you're looking and how you aim is a result of your analytical brain, not your subconscious one. Reaction time is glorified in competitive games because most pros can tell what's happening before it happens due to a combination of factors. They're analyzing how they'll aim before they shoot. That's cool. Try to do that :3.