What a lot of people stop doing after they've played for a couple of years is shooting from real close and shooting on a lowered basket. Afraid it messes up muscle memory. If you shoot some every day and do this once a week it doesn't. What it will do is force you to not solely rely on muscle memory and hone your technique.
If you have a bit sloppy technique (nobody has a perfect shot) than you will make the shots you practice most, but mess up from spots that are not as familiar to you.
So practicing this 'kiddie stuff' might actually help.