HI, and welcome to PC!
I totally identify with this, and, like Kimmy said, often ask myself after the fact, "Why did I say that?!!"
Sometimes this has a good outcome for me, building closer friendships, but I've also experienced the backlash! Examples: I just finished some grad art classes in which I was able to relate on a deeper level with like-minded people and got good feedback and felt welcomed. On the other hand, in my employment as a teacher, my coworkers think of me as a bit of an eccentric! and I have learned to abstain from relating personal experiences to them.
So, for me, the key is to find people who share interests, etc., and curb my tendency to share with anyone and everyone! I think some of this tendency stems from a need for validation and acceptance, but not everyone is receptive!
Patty