Like you, I started off with Linux in a very on again, off again manner. This was probably more than a decade ago, things were pretty rocky back then. It's amazing how far it has come. I started out with Mandrake. From what I remember, it had KDE desktop environment and I didn't really like it.
I started using Linux on more of a regular basis starting with Mint v13. I bounced around with the different desktop environments, I always ended up going back to KDE. I think I switched my home machine permanently over to Linux at around Mint 15. Eventually Mint dropped KDE, which is when I switched to Kubuntu:
https://kubuntu.org/
For my whole life, I've always supported the people around me with their computers. Fixing them, building them, installing operating systems, cleaning up virus laden machines, etc. I hadn't actually installed Windows in several years until a few months ago, I fixed my friends laptop who's hard drive failed. Doing this reminded me of how much better the installation can be when installing Linux vs Windows. I had to go find drivers for a very old Toshiba laptop, which was very difficult to even know the specific hardware that it came with (graphics, network drivers, etc). I installed Linux first to figure out what all the hardware actually is (since it was all unknown in Windows), got the drivers, then went through the installation of windows. I guess the point of all of that was the long way to say that all of the hardware just worked out of the box under Linux.
Anyway, good luck, if you get stuck, don't give up. There is a lot of support out there.