The most important habit that you can establish is believing in yourself. It may sound cheesy, but it it really is the most important one. Every one of my notable accomplishments has only been accomplished because I believed in myself.
You can follow suit by adhering to one simple trick to gaining confidence: Talk to yourself. Write down on a note card your current project, the end result, and why it will work. Repeat it aloud throughout the day.
Having complete and total faith in your abilities makes nearly anything possible.