fyi, there are no real prerequisites for a concealed carry class class.
A particular range or teacher may insist you take a basic safety class before you take THEIR class, but plenty of people successfully pass concealed carry classes from other instructors without having done any "pre-req" class.
That being said, congrats on getting into handguns and bravo for thinking about safety. As you progress, you'll learn what being safe is and isn't, and you'll see plenty of "experienced" people breaking basic safety rules. And you'll learn that there are 2 kinds of gun people - those who have had an accidental/negligent discharge, and those who will. I believe my first "ND" was during my concealed carry class - I accidentally double tapped my target bullseye and got yelled at (rightly), but also got recommended to look at advanced classes
One time after fixing a jammed rifle, I double verified it was clear and only on my 3rd check, right before I did function/safety testing, did I find a live cartridge in the chamber. I still have no idea how that happened, but I verrry nearly wrecked my hearing and put a hole in my basement wall. Even if I hadn't caught it, my hearing would have been the only thing to suffer because THE RULES were being followed.
Anyway, you're a good person for thinking of safety and trying to be a safe shooter. Some of my earliest memories are of shooting pellet rifles in the yard with my siblings and dad. It turns out all the safety rules dad taught us are the same and it was a very easy transition to real guns when I started buying them. Not everybody gets gun safety drilled into their head from before they could hold up a Daisy BB gun though...
Oh, and welcome to the forum.