Many first time concealed carry people want to carry a large weapon. Many end up leaving that weapon at home unless they are going to a dangerous area.
Over time I learned to carry a very light snub nosed .38+P caliber revolver in a pocket holster. If I am going somewhere I just grab the revolver and its holster and slip both into my pants pocket on the way out the door. I don’t have to take the time to stick a holster on my belt or inside my pants.
My prime carry weapon is a S&W Model 642. This is not a long range target revolver but a close range self defense weapon. Being light it has a nasty recoil and most would say it isn’t much fun to practice with. Plus it is double action only which makes target shooting more difficult than a revolver you can cock and fire single action.
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A number of companies make small, light weight semi-auto pistols in .380 or 9mm. Such weapons also often have a stiff recoil but with practice can be mastered. They also can be excellent pants pocket weapons.
One advantage of carrying a handgun in your pants pocket is that if something looks odd you can always put your hand in your pocket on the firearm ready to pull it if necessary.
Other advise is to take a course on the law involving concealed weapons and self defense in your state. Join a gun range and learn how to shoot. Be polite and respectful and you will find the better shooters at your range will be happy to teach you how to shoot better. Far too many men think watching TV and movies for years has taught them how to shoot which of course is false. Women in general are easier to teach than men as they don’t assume they already are good at shooting.