Sorry to press on about your “situation” flash, but are both of your parents ponies? I only ask since, as its commonly known, most creatures outside of the pony race don’t have/cant get cutie marks. If one of your parents was a pony, and the other was some other species (like a hippogriff for example) maybe it’s not that you haven’t gotten your cutie mark YET, but that you genetically CANT get a cutie mark :D