Here is an excercise and I'm going to do this myself.
Write down every negative thought you have. Negative thoughts are thoughts that make you worry, afraid, or feel bad about yourself.
After each negative thought, write down a possitive thought. Try to make the possitive thought something that is really true, even if it's something very small.
Then practice saying the possitive each time you have the negative thought.
Smoke also recommends a book called "the seashell people: growing up in adulthood by Martha Horton
MG