Hello and welcome!
I'm fairly new to Linux as well. I've tried Linux Mint, Ubuntu, Ubuntu MATE, Debian, Fedora, MX Linux, Lubuntu to name a few and I feel I"ve found a home with CentOS. It has the stability and security focus that I've been looking for and I find the KDE DE a good environment for me.
I got rid of MS on my laptop months ago and haven't looked back. This is a great distro to stick with.