Anyone have a similar experience regarding gender

So i know I’m not a male and I just say I’m nonbinary for convenience but I have this imaginary idea/fantasy that when I die (I’m not living much longer because of a health condition) I’ll find out I’m an unknown gender that suits me. That’s just a fantasy I have tho. I’ll finally be free from my male self/body. All I know is that I hate being a male and if I were to choose I would choose being a woman.