I'm 90% sure I'm actually a woman

I'm a 21 year old male and suddenly I'm not sure. I've started to think a lot about my gender and I think I might actually be a woman. Some of my issues are body dysphoria and this feeling that's so hard to describe. I know I'm not gay, I have been attracted to women for my whole life. I've been doing some research and reading about nonbinary genders, but everything I read makes me feel like it's just not that, it doesn't fit. I feel like I just want to be a woman. I don't know if it's possible to know for sure though. I don't want to come out as trans and then years later realise I'm not actually trans. <br><br>I've also never actually felt like I don't fit into the male gender. I don't have any issues with traditionally masculine things, I don't feel like I don't fit in with other guys. I don't even feel like I would be uncomfortable if I had to live as a guy for the rest of my life, but the idea of being able to live as a woman excites me a lot.<br><br>If anyone has any advice, I would really appreciate it. I'm really confused and I don't even know where to start.<br><br>**TL;DR**: I'm a guy but suddenly I think I might be a woman.