Howdy,
What XD40 said!
If there's a gun range in your area that rents handguns try several different ones until you find one that feels right to you.
Everybody is different.
I have one friend that's 5' 7" 150lbs that carries a Glock 20 10mm with 2 17rd mags ( 15 +2 extensions), a bigass knfe, surefire flashlight, etc as his EDC setup.
Another friend that's 6' 4" 280lbs "claims" a Kel-Tec .380 is too heavy to carry and just weighs him down.
You have to decide for yourself.
Get a pistol that you like and can afford, buy a decent holster and belt. The belt doesn't have to be some 5.11 TACTICOOL setup or fancy name brand, just decent quality. I usually wear either a Dickie's or Wrangler belt that I buy from either ChinaMart or Academy Sports.
My EDC is a Glock 23 .40S&W carried in a Glock holster OWB @ 3:00. I've been carry OWB @ 3:00 for over 34 years and even though I've tried different methods it's the one that works for me.
I started out carrying a full size 1911 and 4" .357 Mag,, but for the last ten years my main carry is the G23.
Just my $.02 and your mileage may vary.
Paul