There is a such thing as too much information, nobody needs to know you that well. Nobody needs an inside peek at every nook and cranny of your life, your failures and tragedies, goals attained and successes. People have a bad habit at loosing interest and let's be honest, respect for you. As much as we try to be nonjudgmental and open to new things, we are not built that way. Yes, at first we can be somewhat intrigued by your life experiences, but soon you have lost us. People love mystery, we enjoy the wonder of where you have been and what you have done. As you remain mysterious, we remain intrigued.
Think for a moment about romantic relationships, if sex happens on the first night, the relationship is liable to go to the dust. The partner has already seen the inside package and has essentially lost interest. Now, what if you hold out, a month, a week, a year, the suspense remains and as does the relationship (if it was ever going to be one).
The same goes with friendships, once you have opened your banana peel all the way, your phone suddenly stops ringing and the relationship is gone. Keep the mystery, keep the admiration for what we think your life was like. The suspense is better than the knowing.