A number of organizations offer training in organizational skills. The most common is higher education. Most colleges, universities and adult education programs have classes in time management and organization.
Time management is the number one way to acquire organization skills. Your time management skills can help you organize your life. By managing your schedule, you organize what needs to be done, when it needs to be completed and how to finish it in a timely fashion. These are the skills needed for organization.
Organizational skills will make you a generally more efficient person. You'll be dependable when others need you. You'll be able to take on more projects, while confidently knowing you can handle them. Being secure in your organization skills will allow you to be in control of more responsibilities with a lot less stress and anxiety.