Project managers are required to be a sort of jack-of-all-trades. Meaning, as you said, project managers must have strong qualities of communication, interpersonal skills, organization, crisis management, along with others. Managers are tasked with managing a project by managing the people working on it. This is a difficult job and one that it crucial to the overall success of the project. Personally, as far as skills I currently have corresponding to me being an effective project manager, I think my biggest skill I would need to work on is my organization. In order for me to manage an entire team of people I would need to put in some effort to focus on my organization skills.