mar 🇺🇲🇨🇦(₿) on Nostr: If someone doesn't rebroadcast it then can anyone even see your note? I did a test ...

If someone doesn't rebroadcast it then can anyone even see your note? I did a test note and on citrine and went on my test account search my account and didn't see the test note.
I don't really understand citrine. Why do I need it.