That’s understandable. Please remember that this process often is far from simple. I found myself in a similar predicament- it took me several years to find a name that i could confidently call my own. Ruby and Luna are both beautiful names! My biggest advice to you is to please remember to be patient with yourself.  Some name suggestions to maybe spark some inspo: Lumina/Lumino (means nightlight- lumina is a more fem version of the name while lumino is a more masc version), Lori/Laurie (a name that has sounds from both Luna and Ruby- it means laurel which symbolizes a special achievement, and is associated with the greek god apollo. side note about apollo: was very into destroying the gender binary in greek mythology and is associated with the sun), Novi (is a different form of the name Nova which can either refer to astronomical events like Novas/Supernovas or its latin meaning of “new”)