One other tool that you can use to foster belief in yourself is listing your successes.
Whenever I embark on a new project/goal, I make a list of my successes or accomplishments such as learning to drive when neither parent did, being the first female cousin in my family to graduate from college and being elected president of my state professional association.
Well actually, I keep a list in a file that I can review and add to when I start a new goal or if I just need a reminder that encourages me to push forward.
Doing this exercise, while it may feel silly or like bragging, really helps you to acknowledge that you have been able to achieve great things in the past and provides the foundation on which to build your next success.
What is on your list?