Believe in yourself! Have faith in your abilities! Without a humble but reasonable confidence in your own powers you cannot be successful or happy.
Without continual growth and progress, such words as improvement, achievement, and success have no meaning.
Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.
Whatever you believe about yourself on the inside is what you will manifest on the outside.
You've got to believe you are worth more than being repeatedly hurt by someone who doesn't really care about you.