Welcome from East Tennessee! All great advice! I can't add anything, but to simply re-enforce instruction, training, practice & safety. I've got several carry-able firearms. Ranging from a very small Taurus PT738 TCP .380 (I know some of these didn't function very well, but mine has been flawless from day one) to a full size .40 S&W Beretta. My choice to carry is a S&W M&P Shield Plus in 9mm, however, with the clothes I wear (for summer, at church, around the house, etc) I end up carrying my pocket .380 more than any other (the Taurus). I have an in-the-pocket holster for the tiny Taurus and the compact S&W M&P Shield, that totally covers the trigger and hides them very well in my pocket. You can see that something is my pocket, but can't tell what - no "printing" (the visible outline of a gun in your pocket) as you will learn. I also have waist holsters, inside or outside of the waistband, depending on my carry circumstance. I even have my gun in my medical carry bag or a shoulder bag at times (trigger covered). Even though my little pocket pistol is handy and easy to carry, it is NOT fun to shoot! My hand hurts after practicing with it. I call it a survival gun; again I would much rather have my M&P Shield for carry, and practice! It's a wonderful and fun firearm! Whatever you decide to get; practice every chance you can, be deliberate about it. Even if you're not at the shooting range, carry your firearm around at home to get the feel of having it on your person. Know the operation of the device without having to think about it (another plus for a revolver). Learn how to manage it when your in the bathroom! You don't want to drop it in the toilet! Learn how to manage it if your changing clothes at the gym (or in the gym shower), or in the dressing room at a department store. The most important aspect is safety, whether it's in your pocket, in a holster, or locked up at home. Make sure your holster absolutely prevents an accidental trigger pull! There are soft holsters on the market that are dangerous! If there are other people in your home, especially kids, the firearm must be totally inaccessible and/or un-usable, but still accessible to you should you need it!!!! I have a highly secure lock-box in my vehicle, so that if I end up at a Federal Building or such, I can lock up and leave the firearm. If you travel, check the gun laws where you will be traveling. I live in permit-less state, but I still have carry permit because some states require it; and even with a permit, some states still forbid it. When I drive through Illinois for example, I have to unload, lockup my gun in the lock box, and secure my ammo away from the firearm in my vehicle.
Also very important, whatever firearm you choose - learn how to give it a thorough clean & lube, and also a quick clean in-between the deep cleans; or know someone who can. A dirty gun may not function... Hope this isn't over kill, but there is a lot to consider (and must be considered) in owning a firearm. Your day to day may need further considerations.
