Always believe in yourself and think good about yourself. One of my meditation techniques is to journal how grateful I am about myself.
For example, I say:
I am grateful for the way I think. I am grateful for all my thoughts of the past. If I would not exist I would not be able to think a single thought, positive or negative.
I accept myself the way I am.
I forgive all my past. My past is free and so am I. I free all people. They are free and so am I. I am free.
I appreciate myself. I appreciate all the things I do. I appreciate my present lifestyle. I love myself.
Always believe in yourself.
You are a miracle.
You are a gift to the entire world.
You are such a beautiful gift for the people around you.
You are beautiful.
Believe in yourself.