Why do I act so shy forever hiding my face

Think what a huge force fear must have been. Imagine being out in the dark, alone in the elements. Fear, great enough to change the formation of all living things-eyes on the side, eyes in the front, protective coverings,spikes and venom. Other protections too-shyness and anxiety and superstitions-all remnants of fear. Rituals and raindances, gods and mythology. Living in groups...It goes on and on. Fear causes the greatest changes, when you think about it. Fear is a monumental force. Sometimes it can get drowned out by other things, Maybe it gets tweaked by people in your life. Urged in one direction. Sometimes that's just the way you come, or it gets broken...Nothing about me is broken, just in general. Sure, okay. Instincts are an awesome thing, but we dont have to be a prisoner to it, we choose too. What brought all of this to mind? I met someone. Not just someone, but someone. Im in love, and my insticnts are here and they are working fine. I just have my fear turned up a little loud. Like my stereo with too much bass. Makes it hard to hear the lyrics. I don't want to get hurt. How does a person stay safe, always? Lock myself away? Im looking for guarantee and there are no guarantees. If I love, i'll feel loss. I can't 'careful' myself into avoiding loss. I'm trying to get day without night. All the marshmellows without the cereal. Summer vacation without the school.