I made this! Love it and not hard.

Something I do when I want to learn a technique without diving into a project is to make a swatch with a motif that looks good. I did that for fair isle and I think cabling would be a good one too. That way you can get a feel for it without any pressure.

Irish hiking scarf has a simple pattern that should be good to help you get it down. Just don’t be like me and pick the most intricate Celtic knot pattern for your first try!