might I suggest and ask sir beldin for your sake if perhaps a single action handgun would be the best choice for you as it does not require a hevy first pull, squeeze, of the trigger and thus, the amount of squeeze would be the same every shot. Also does not reqire you to cock the hammer either. Get a gun that does not have a hamer to cock.....
Make this easy as can be...
Ruger makes good quality handguns that are warranted for lifetime.. If there is ever a problem you call the 800 number, tell them what's hapening, and they send you a box in the mail to send your weapon to them to be totally gone over and repaired back to new like condition free of charge... I did this with my full size 9mm handgun...
They also are madee here in America and less expensive than the Glocks and work just as well.
Glock is a fine weapon as well. So is Smith & Wesson if you want to look at another brand....
Just something else for you to consider...