Yeah that was it for me. Just keep regular backups and bear in mind that you’ll probably break stuff at first. But once you get the hang of it, it’s like a whole other level of control over your system.

Also I’m not dyslexic but would things like tab completion and aliases help maybe? I sometimes shorten often-used commands with aliases just for convenience (as an example, I use rsync a lot, particularly the command rsync --ignore-existing -ravwhich I just shorten to rs to save time) so maybe that could also be used to avoid mis-spelling?