How do I find out what am I? I already have a species in mind, can anyone tell me if I'm right?

Only you can tell for sure. There are many theories in the community on the best ways to determine what you are. Some people like to look at the artwork they are attracted to, or what they've collected around the house. Others pay attention to where their body feels out of place. Perhaps the best advice of all is patience and time. Some people will undoubtedly take one look at you and proclaim your species for you, but if the label doesn't fit, don't wear it, and thank them for their time.