What client are you using?

1. You have a name, but you haven't got a "nostr address" yet.

An address is a verifiable identity. For example, it could be "elon@tesla.com". Nostr clients will go to tesla.com and search for a proof that "Elon" is registered on it and compare the npub against yours. If that passes, we can be pretty damn sure that someone who has access to tesla.com attests that your account is the real "Elon".

If your address was "craig@nostr-check.com", well nostr-check.com is one of many nostr identity sites, so it is a first come first serve type deal, like usernames on any other platform.

You can then say "hey, I am craig777@nostr-check.com on nostr" and people can find you by that.

Disclaimer: Since you don't own nostr-check.com, the owner of the domain could remove you, like how Elon took the @music username from someone on X when he took it over. If you have a website, I can help you register your own name on your own website. Then you don't have this risk.

2. You don't have a lightning address set up. This is how people can tip you bitcoin for your posts. I recommend using the minibits wallet. You can get a lightning address from there, it is quick to setup and you can start collecting internet points and even zap others back.

Use your client, edit your profile and set up those two things.