They say that the best things in life come from doing things that scare you. If that's the case my life is about to freakin' explode! Be brave! Have faith! Go after everyday and find the lesson, enjoy the experience and LOVE life!
When you will find your reason to do it, you will feel that fire within you. The kind of motivation that makes you keep going while others give up! This is not just advice for the gym, it is advice for everything in your life.