Many times those with ADHD are seen as lazy or rebellious because they have proved they are capable of this organization. Since the capability is there, the disorganized person just must not be trying, or so others think. The ADHD person can also blame himself for not being able to consistently stay organized and this may lead to self-esteem issues. Many people with ADHD, like me, have a library of books about organization. You can become more organized, but you must realize that you have to take it slow and set reasonable goals and time frames for yourself.
Medication is one way to help with organization.
It made a tremendous difference in my own life. I was finally able to stay on task long enough to complete a job from beginning to end without getting distracted and involved in 20 other things. Medication does not do the cleaning and organizing for you. You still must learn how to organize as well as set goals and become motivated to actually do the work involved. Divide up your big tasks into much smaller ones.