Never fired once but carried for six months?
Wow thats all I have to say. My main carry gun has at least 1,500 rounds through it. I just picked up a brand new Kimber Pro Carry II yesterday and it wont get into the carry rotation until it has at least around 500 rounds through it with no major malfunctions. On top of putting many FMJ rounds through my guns to test function I also fire around 1 or 2 boxes of the JHP's I plan on carrying just to make sure they feed reliably in my gun, and that I am proficient with them.
on top of practicing with your carry weapon to check reliability, if you are going to make the life choice of carrying a weapon you should be well practiced and confident with it.