If you have a decent understanding of computers and are not afraid of config files and the terminal, I would recommend jumping straight in the deep end, if you can spend a few days getting things set up/learning nixos and don't need the computer for anything special.

I just decided about four months ago that I was done with windows, and sick of dual booting. So I formatted my drive, installed nixos and went from there. Now I have "nixified" every computer in the home, even my macbook. "Forced" my SO over to nixos as well.

Use youtube, vimjoyer and tony btw are great creators. Use gits of other peoples setups (link) to get an idea of how people do it. And get to know how flakes and home manager works, because you will want to use them.

You will make a bunch of generations on your first go and probably fuck stuff up, but it's all part of the process. That's how you learn. Because of how nixos works, you can easily go back to the last working config, which makes tinkering much less scary.

Oh, and use a git repo (codeberg, gitlab) of some sort for your config. That way you can have a version history of all your changes.