For example, if you decided to improve your skills in dealing with people, then you may have problems due to the fact that you do not have certain information, and that you don't communicate with people. Therefore, you need to find out some necessary information.
How to study the information?
Gain the knowledge you can in a variety of ways. For example, you can begin to learn certain information on the materials from different books or from the Internet. Or for you it may be easier to consult a specialist who already knows the answers to all questions, and is ready to share with you the right information.
It's possible that you need to pass some training courses in order to absorb a large amount of new information.
Maybe someone of your friends or acquaintances who have already achieved what you want to achieve at this point in time. Perhaps you can contact him, so he gave you the required information?
The basic principle
You need to begin learning the information you need. The most important thing is that you do not need to gather all the information, enough to figure out just 20% basic and the remaining 80% will not be so great so you can walk to other knowledge and independently, without someone's help!