You got

Marceline the Vampire Queen.

You have lived long enough to watch everything you love decay, and instead of becoming bitter, you became a musician. Your coolness is armor forged over a thousand years of loss, and the few people who've seen underneath it — really seen you — are the most important beings in your existence. You pretend nothing matters because everything matters too much.

• ancient
• guarded
• musical
• vulnerable
• cool