Always maintain your integrity. Get into a business that you know something about and enjoy doing. Focus on the customer. Hire good people and allow them to do their job. Never, ever run out of cash.
Risks are part of the game.
Don't fear them. Never mistake a good idea for a good opportunity. Provide something people need and take a chance. Success is earned in small increments. Build confidence ever day by setting up ways to experience success in terms of calls made, presentations given, referrals gained And be sure to reward yourself for your successes.