Religion works more through the emotions than through reason.
Spirituality means something different to everyone. For some, it's about participating in organized religion: going to a church, synagogue, mosque, and so on. For others, it's more personal—some people get in touch with their spiritual side through private prayer, yoga, meditation, quiet reflection, or even long walks.
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.