By not taking care of yourself you are committing vocational suicide. YOU are the boss. Without you, your business will fail. And you WILL fail if you refuse to take care of yourself. Surround yourself with positive people.
Optimism can be contagious.
Try for volunteers, interns and friends who are willing to help. Start a focus group, chat on the Internet, or join an organization of like business-oriented people. Search out these peppy people and soon you will be feeling the power of their creative vibrations. Ask your employees how you can boost moral. Get some input.