Aiming without the game

How much am i fucking myself over by only aim training without the game.

I took a 2 week break and recently begun to fix my unhealthy gaming habits. Came back and my aim is shit and it genuinely feels insufferable to play with bad/average aim. i think i hate overwatch now lmao

I know im definitely going to want to come back to this game sometime in the future so im trying to just aim for 1 hour a day, sometimes less

I know that shit like game sense are gonna fall off a cliff but im specifically asking for aim.

Like if the visual clutter is gonna screw me over when I eventually return or something