I am headed off to college soon and I thought that this would be a perfect time to introduce myself with a gender-nonspecific name. The problem is, I don't have one in mind. I've gone by the same name, Cathy, all my life, so I feel a bit strange introducing myself with a name that no one calls me. I was thinking that it would feel more natural, and also be easier to explain to old friends and family, if the nickname was based off my real name, Catherine.
However, all the names I can come up with feel gimmicky or unnatural. I think this comes from some sort of natural bias I have against picking a name for myself--it feels more real if it's just something people decide to call you. Like, if Bob decided that he should be called "the flash," because, 'oh man, I'm so fast!' it would be just be silly and kind of meaningless.
Anyway, enough rambling. I'm looking for name suggestions, past experience storytelling, or just general advice. Think you can help me?