I have a gun on me 24/7.
First and foremost, SAFETY. PLEASE LOOK UP THE 4 FUNDEMENTALS OF FIREARM SAFETY. IT SAVES LIVES.
2nd, know the laws.
Politicians like to tell you if and how you can defend your own life. This, of course, while they roll around with personal security that are carrying...wait for it....guns. Compliance is optional. If you allow the threat of jail to prevent you from defending yourself from violent criminals who don't follow the law anyway, that's on you. Remember that.
Dont fall for the hype. Keep it simple. Any gun is better than none. Get something that you will actually carry, and shoot it. Practice.
There's no wrong way. I carry a glock 43 in a pocket holster. Works best for work where I'm "not allowed" and overall it's very discrete and I forget it's there, so comfort is good. In my room (and soon my van) I keep something a bit more 'home defense' oriented. Usually a Glock 19. I also use a suppressor. Consider one if you like your ear drums. Firing a gun inside, let alone inside a van, is, well, not fun.
In summary, safety above all else, something is better than nothing, and you're better off judged by 12 than carried by 6.
Oh, and anyone who is naive enough to be "anti gun"...lol, don't bother trying to talk them out of the bubble they exist in. Cheers!