Go for a popular/“beginner” distro (basically mint or fedora or fedoraKDE, or Bazzite for gaming) so you can search up anything you need, and before you install anything test it all out with the live boot disk you created; keep backups and don’t be afraid to fuck up, at worst you reinstall and you can script much of the set up process; and do not be afraid of the terminal, learn its secrets, watch a “bash beginner” and “linux terminal beginner” video or a few on youtube and follow along like it’s a class, you’ll be fine.

That’s it, you’ll have specific questions later, but for now that’s all you need.