Twilkes
Guru
It's a skill I would like to have, so keep going if you know how to do it.
How do you get started and how difficult is it?
Have a read of this: https://www.sheldonbrown.com/wheelbuild.html
Easiest way is taping a new rim onto your old rim and moving the spokes across one by one, but you should be able to build one from scratch in a morning. You can turn your bike upside down and true it using the forks/brakes as a guide but don't tell anyone.