The really happy people are those who have broken the chains of procrastination, those who find satisfaction in doing the job at hand. They're full of eagerness, zest, productivity. You can be, too.
Believe in yourself! Have faith in your abilities. Without a humble but reasonable confidence in your own powers you cannot be successful or happy. But with self-confidence you can succeed. A sense of inferiority and inadequacy interferes with the attainment of your hopes, but self-confidence leads to self-realization and successful achievement.