If you are starting a business or a new job; focus on your strengths and your abilities. Concentrate on being excellent at them. If you love to write, focus on different writing techniques and try to master them. Broaden your horizon by reading different books about prolific writers. Be persistent about moving forward because your tenacity will get you over the edge.
Pick one technique and master it. Yes, it is good to be well-rounded but it is even better to master at least one thing. Find strength in what you do best, focus on that particular strength and master it.