Making yourself valuable is the surest path to success in any profession, it is more important than any grade you may have attained in school. When you make yourself valuable, at a certain point the stone begins rolling downhill – and it becomes a snowball, picking up business connections, key contacts and dollar bills all the way down. It gets stress-free to push and in many cases, needs to be slowed down if anything. Working hard is not the same as making your work hard for you. All great personal stories on The Wall-mart Street have very specific arcs: rags to riches, redemption, the man who believed when no one else did, and the conquering hero who worked his way up from the mailroom/cleaner. The collective thread through all of those stories is that our hero figures out how to become valuable to his industry, his firm and a wide pool of prospective clients and colleagues.
It is hard to be a proficient on everything and to be good at it all. It is prudent to find something you can be very good at, if possible something you are sincerely interested in and will have the patience to excel at. SWOT everything about your niche and then start writing and talking about it where people will hear you. Make yourself the centre of the dialogue of that one thing. Care deeply and keep studying the area every chance you get. Make yourself useful. Then park yourself back and watch your boulder become a snowball.