You need to have a total commitment to succeed in business. Most people who make it to the executive boardroom put I long hours, often at the sacrifice of everything else. Regardless of the physical effort involved, you must mentally be engrossed in your business and the company enterprises. In order to help yourself develop fully, you might seek a mentor, someone who will offer you time and teach you the ropes. This person usually is someone who believes in your ability, someone who you can develop a mutually beneficial business relationship with.
Some people become friendly with all their co-workers and find that is a way to advance.
But don't try to be extroverted if it's not real to you. Most people who successfully run their own businesses are individuals who like to work alone. As you increase your activities and accomplishments, you increase your potential to reach higher. The more you achieve, the more confidence you develop to achieve more. You don't have to be the same as everyone else and fit like a vegetable in a patch.