If you can find one, the Sig P225 or P239 are excellent conceal carry firearms.
I have the same issue (smaller hands) and can operate these with ease.......
I prefer the fit and feel of the P225, but my 239 is great. (239 is available in 9mm, .357SIG or .40S&W ) The P225 is 9mm.
Just an FYI (i know i dont need to say this, as your taking the most important first step (and kudos to you

) Training....Training....Train
ing, and then when you think your trained....train some more, and keep training as long as you carry........to the point that its second nature and muscle memory takes over.