How do I create a CNAME record for my project?

So im trying to set up fly.io and its asking me to create a CNAME Record, but idk how to do that on glitch, Ive tried this:image but it didnt work, it tells me to wait but ive been waiting for 15 minutes now and still nothing??

please send explanations on how to create the CNAME properly on glitch since it doesnt have DNS settings menu like other domains, thanks <3

You don’t create the cname record on Glitch - you create that on your domain name provider’s site. I can’t give specific instructions for that since each provider is different.