Seek their advice when necessary. Enroll in classes and read books to learn, how to do, what you do, better. Classes on selling, marketing and business skills are especially valuable. Believe in yourself. You can if you think you can.
Actions follow thoughts.
So think good thoughts and focus on the positive. Exude passion, excitement and enthusiasm when speaking about what you do. People want to do business with people they know like and trust. Building credibility is crucial. Right after completing a successful assignment be sure to ask your client for a testimonial letter.