PMS? Mood Swings?

Just started my periods and have had them for about 2 months now. Since I'm just starting out, my periods are irregular and my mood swings and PMS and awful! I just wanna stay in bed all day and each pounds of chocolate. Every thing I love to do seems tiring and my moods are driving wedges and causing conflicts between my family and I. This is really hard. Does anyone have advice on how to crush cravings, feel happy, and control mood?