Most of us wish we could improve certain things about ourselves. Lasting change is difficult: Many of our habits are deeply ingrained, and certain core personality attributes may be immutable. But even the oldest of habits and character traits can be altered to varying degrees, as it's never too late to change; with effort and determination, it is possible to be the person you want to be.
Plenty of people suffer from one form of compulsive behavior or another. There's compulsive shopping, hoarding, eating, gambling, sex, even exercise. And, of course, there is garden variety obsessive compulsiveness.