Listen to your conscience regarding something that you simply know you should do, then start small on it - make a promise and keep it. Then move forward and make a little larger promise and keep it. Eventually you'll discover that your sense of honor will become greater than your moods, and that will give you a level of confidence and excitement that you can move to other areas where you feel you need to make improvements or give service.
When you are truly interested in other people, you will learn what they are interested in and if they have a need for your product. If they like you, and most people like folks who take an interest in them, they'll help you find people who do need what you have to sell, even if they don't.