every pistol shooter should have, and use, a .22lr handgun
Build fundamentals with a .22, or even a good quality air pistol.
Hundreds and hundreds of practice rounds, working on sight picture, breath control, trigger squeeze.
All of that will translate to better shooting with any other handgun.
Right now, you have too much gun.
In my opinion, you can NOT afford to NOT have a .22 in the mix.