Only you

If a definition is too broad it isn't particularly helpful. Not only that, because if we search for identity via a definition we are attacking the question from the wrong angle. 

Asking "am I trans?" Is like asking "can you tell me who I am?" 

No one else can answer that but you. 

A more appropriate exploration would be:

"How do I live a more honest, authentic and balanced life?" 

Again, something only you can answer.