For the longest time, I thought I was a type 5 (as INTP). Most INTPs are that enneagram type, so naturally I thought it was me. Despite the fact that Type 9 would often test equal to or above Type 5 for myself.
In the past year, I've come to accept that I am Type 9.
The 9 is often described as the Peacemaker, and that really applied to me. I didn't like drama or other people intruding on my little world. Don't rock the boat, don't make waves, don't do anything I have to deal with other than my own thoughts.
Realizing this is my natural tendency has actually freed me from its constraints. I now care less what others think/feel, and realize that they can handle whatever I say/do far better than I previously expected. I no longer have to weigh each statement before I fire it out. It's more fun to throw it all up in the air and see where it lands. I'm overly sensitive to how things are interpreted, so if I see little problem with a statement, then if someone has a reaction to it they're the ones that are overly sensitive. It's their problem, not mine.
This is not to say that I can't or won't attempt to find harmony with others. It's that I don't have to do it all the time, I can choose when I want it and when I don't.
I wonder if any other Type 9 has discovered this as well.