Hiyas!
I am 41. Starting also as a teenager I had fantasies of wanting to be a woman, but never thought it was something that I would be able to do. I was big (broad) and overweight and didn't think I would ever be able to pass. Additionally, while I wanted to be a woman, I wasn't interested in girlie things and I didn't feel very feminine. As a result I was just confused and I wound up pushing my feelings away and trying my best to ignore them. As I got older the feelings just got stronger and stronger and harder to push away, causing me anxiety and depression and I didn't know why.
A month ago, I figured it out, I WANT TO BE A WOMAN AND I AM GOING TO BE A WOMAN! I found a therapist and started losing weight (down 45 pounds as of this morning) and started taking steps to to feminize my life. I have come out to my wife and mother and a few select friends. I feel like I have lost so much time that should have been spent as my true self. Well, I am not going to waste any more time.
So, 30 is DEFINITELY not too late. If you think that you want to be a woman, even if you are not sure, you owe it to yourself to be open about it and to explore those feelings. As some have previously stated, a therapist who specializes in gender issues is a great place to start. Also, not everyone needs to transition fully to womanhood to meet their emotional needs, we are all different.
Good luck and ask us anything. I have found the community here warm and welcoming and willing to address all of my questions so far and many of us seem eager to pay it forward.
Julie