Good for you! Building a wheel is on my to-do list. I can true a wheel, usually, fairly accurately. And years ago I started to build a wheel just to see if I could do it. I got it laced, but not tightened. And then I don't know what became of it. But I didn't finish it.
Still, I want to do it so that I can start having 'bombproof' wheels with whatever hub, brakes, etc., I happen to want.