Horn, know that you are not alone. Very many successful people succumb to this affliction. It takes people from all walks of life. The important thing is to recognize it and take action. You have earned many 'stripes' in life. Add one more to your list. It takes a strong person with determination to succeed at kicking this thing. Acknowledging the problem is just the beginning. Taking action is something not alien to you, it's there for the taking - so just do it.