For my transition, the idea "I would be happier living my life as a man" was far more helpful to my journey than the question "am I truly a man in my very soul" or whatever. It doesn't have to be that deep. Your body is yours. Do with it what you want. Be who you want to be. Less pressure on "who you were made to be" as if that is some kind of immutable force. If you think that way you'll never stop questioning yourself.