Don’t worry, its made for you to pick it up as you go. Make sure you familiarize yourself with the 3-2-1 backup principles first. The idea that your data survives regardless of anything that may happen is important. You (and I trust me) will bork things and accidentally erase precious data. Be prepared to recover from that. Simple solutions you understand and test > complex info secondhand.

You ddint ask but I will mention you shouldn’t encrypt anything yet that you dont have to. Also use as little software as possible I.e. stay away from github repos.