Why not base your identity on the reality of your situation. In that way, you can better expect others to accept your identity, because they're accepting reality.
Just because you feel like a purple space unicorn because it isn't reality, nobody else is feeling that. You can't expect others to accept your fantasy. Reality is the only thing we all share, and the only thing you can count on from others.
I can already hear the counter-argument.... "But my feelings are real" - of course they are, but they're your feelings, not anyone else's. Nobody else hears the call of the moon goddess telling you about your destiny to bring rainbow sprinkles to all of the lonely cupcakes on Jupiter......we all have our own problems - nobody wants to deal with yours.