Join the military. Answer being organize is a great goal, but it its usually can't be accomplished all at once. First, get a time management system. Use a computer calendar program like Outlook, as mall pocket calendar, or a PDA to list important events and andactivities. When you have a major project due, schedule times to work on it. THEN COMPLETE THE ITEMS ON YOUR CALENDAR EACH DAY. Plan to have every project completed well ahead of time, not at the last minute. your disorganization may also involve your environment. if your room/apt/house is a mess, set aside time on a regular basis to organize. Start with one specific area, like your bedroom or a closet. Toss or donate every item you haven't used in a year. Store what's left frequently used items in the most convenient places. Analyze your disorganization. do you put things off? is the place a mess? Are you overs scheduled? Try to figure out what the problem is, and solve it. Your local library will have many books on organizing your time & space. Good Luck! A good start for messy people to try to become more organized is keeping everything in its place. Organize you space, put things back after you use them, use a calendar to more important meetings and organizations and write things down in order to not forget them afterwards. Make a schedule, use planners and check through your things ooccasionally, that way you'll get used to your new way to organize things.
I hope this helps