I'm a perfectionist. Sometimes, when I don't reach my goal, I get really depressed. 
Is depression a common symptom of perfectionism?
Yes, it happens often. There's a lot of pressure and when we don't reach our goal, it's disappointing.
Can a person be cured from perfectionism?
Obsessive–compulsive personality disorder
Obsessive–compulsive personality disorder (OCPD) is a personality disorder characterized by a general pattern of excessive concern with orderliness, perfectionism, attention to details, mental and interpersonal control, and a need for control over one's environment, which interferes with personal flexibility, openness to experience, and efficiency, as well as interfering with relationships. Workaholism and miserliness are also seen often in those with this personality disorder. Persons affected with this disorder may find it hard to relax, always feeling that time
of change and people would have moved on after such a long time. Now that I'm moving through my OAP heavy metal years (laughs), I thought a lot of it would be gone by now. And it's a shame. We don't really get to spend a lot of time on this planet together, so there's no point in wasting it being divided."
Halford knew of his sexuality in his youth, and that the current American administration "doesn't look particularly healthy right now.