Think of yourself as a businessperson first and foremost. Be dependable. Be available. Be visible. Be serious. Market yourself. Stick to deadlines religiously.
Don't guess what your customer needs—if you aren't 100% sure, ask. If you don't like what you hear, say no.
If you are called upon to do something you cannot do, say no. But if you do engage in a contract, abide by its terms.
Determine where you want to go. Ask yourself: What would I like my professional life to be, say, ten years from now? From time to time, calibrate the things you do on a daily basis against that overall goal.”