Another way to put an end to self-rejection is ask yourself whether what you're telling yourself is what a friend would say, or what an enemy would. Friends are supportive. Enemies put us down and undermine our confidence. So if you say something that an enemy would say, stop. Answer back, 'I'm going to be supportive of myself. As a friend, what I have to say to myself is . . .' Then say something supportive.
