Last year I jumped out of a plane. It was my biggest fear, and became my biggest thrill because, sitting three miles up with my feet dangling over the edge, I wasn't scared. At all. Nothing of what I feared about that moment came true. And I realised that it was never a fear of dying that had kept me from jumping, it was a fear of what people would think of me if I chickened out.
You are not the thinker of your thoughts (that would be the lizard brain), you're the one who hears them. You're the one that's left when all the shitty thoughts about yourself that have been learned (incorrectly) along the way because of the life experiences your brain has been exposed to are stripped away.
The job of our unconscious mind is to keep us safe and protected - to keep us out of the way of potentially life threatening situations. Fear in these situations is obviously very useful, but the trouble is that our minds often connect up what should actually be neutral situations to something it perceives is harmful to us.
For some perfectionism is an internal wasteland where all positives are ignored and life is like wading through treacle. For others perfectionism makes the outside world never enough and disappointment poisons most activities and relationships. Perfectionists walk a tightrope where impending disaster is held at bay with extreme effort.
In this age of Facebook, Instagram, Twitter etc. we are increasingly living our lives through the eyes (and comments) of other people. Have you ever stopped to think about how and what this means to you on a personal, emotional level? If someone 'Likes' your post does that give you a boost? Is your sense of self dependent on how many virtual 'friends' or re-tweets you have?