All good advice. Carry around house with ammo in a completely separate area. I’d skip this gizmos and just dryfire on a 1/3 size target or light switches (again, ammo not even in the same room). Dryfire will not hurt and will only improve the trigger making it smoother (like polishing). Nothing beats training and live fire.
Also, some will disagree, but weapon manipulation and hitting where your aiming as fast as you are currently capable of can be best learned through pistol competitions. USPSA and IDPA will teach you more about your movements, gun handling and that specific gun than just about anything else. Find a local match and go watch, but trust me you’ll be sad you didn’t come prepared to shoot!!! 99% of local matches will be a great group of like minded individuals who will love sharing their experience and knowledge for free, and yes, sometimes too freely, but in the spirit of helping mostly. Watch those that are shooting so fast your convinced they aren’t even looking at their sights then go score their targets to learn what is actually possible with some practice.
Tactical training is great but there are two weapons involved in using a gun. The physical connection between the gun and your hopefully repetitively trained body (“muscle memory”) and using your brain for what to do in this particular situation. Completion let’s your gun/ body learn to go somewhat subconscious and tactical training give your the smarts to do the right thing at the right time. They are the two side of the sword that work best when both are sharp!
More importantly, pistol competions are an absolute blast (pun intended)!
If you or anyone else wants help finding a local club, send me a message and I’ll help you search.