Can you call yourself a title or do you earn it? (DR,Bishop,Sgt)

Lord.. Self titled

Ya I think I'm a princess yet I officially have no such distinction

you may call me duchess

You may call me Queen Awesomesauce

No, professionally speaking if you will use such titles in a formal or public writing you'll get lawsuit! It is a form of deceit that can lead to fraud. Caveat.

Girls online call themselves queens and princesses all the time 🙄

I do call my Pastor Pastor Pena because he earned it. But he does not go around expecting people to refer to him as a Pastor or reverend because he is a very humble man.