Mam,
Like any good tool that you own and is paid for you should NEVER get rid of it unless you are getting a better one in trade.
If you do not feel comfortable with the one you have by all means find one you are. BUT go to one of the gun shops with an indoor range and test them til you find one you ARE comfortable with.
As with all Autos ammo matters, and .22RF even more than most.
Try several different brands of ammo.
I have some .22rf that will not work with specific brands.
The more expensive may not be not be as good as cheap just depends on the pistol.