Many forces in my life since high school have helped shape who I am today, and TFP is undeniably one of them.
When I joined TFP, I was still holding on to fragments of my fundamentalist Christian upbringing. I found out that my boyfriend, SecretMethod70, was an admin at a "porn site," and freaked out. He assured me that there was more to the site and I should give it a chance. Within a week of joining, I realized that not all the members here were evil perverts and most of them were actually really cool people!
While I was already on a path to overcoming many of the repressions that I had grown up with, I'm sure this was a huge catalyst to embracing my own sexuality, which I was ashamed of in my house.
My world growing up was very small, and any attempt to break free was immediately squashed. Joining a large community like TFP with so many people and so many varying viewpoints was hugely helpful in broadening my world view, and not being afraid to explore new thoughts and ideas.
Ideologically, I am a very different person today than I was around the time that I joined, and TFP has certainly played a part!