I need help with setting up a custom domain, my registrar is GoDaddy
Hmm… it’s weird that a lot of people have troubles connecting their DNS on GoDaddy, here’s a post from a user who resolved their issue! Check it out: Connecting Domain with Godaddy
Also, if you follow the instructions exactly, it takes roughly 24 hours for it to work. So you probably did it right, it’s just a waiting game on it finally working.