The most dangerous negativity comes from ourselves in the form of doubts, fears and unreasonable self-criticisms. Excessive self-criticism is a bad habit and is extraordinarily self-destructive. Don't be your own worst enemy! Imagine a bully who points out all the things you have done in your past, such as mistakes you've made and even future things that you "allegedly" cannot do or accomplish. This type of unreasonable self-criticism represents a form of self-hatred and fear.