My mood changes all the time. sometimes i just feel sad and angry and hate everybody for a whole day and sometimes it last morethan 1 day?

Have you ever been: evaluated for this? See you are 19 years old. Sometimes moods can shift due to teen angst. Or mood swings might be related to a mood disorder or personality characteristics. If this is impacting your quality of life would encourage you to be evaluated by a psychiatrist or a psychologist. Take care.

Mood change: This may be hormonal but you should see a doctor as medication may help you