Need solution to manager mood swings.

Hi Doctor. I'm a 24 year old HR professional. My major role is conducting interviews and assessing candidate. I'm multi tasking now to actually balance my work-life and education (pursuing MBA in distance education). Recently I undergone mental agony as my 5 year old relationship broke up. He went abroad and terminated all sorts of contacts with me. This incident hit me so hard even though it was always an on-off relationship. I can't handle my situation alone as I have my exam scheduled earlier next month and work is also too pressurized. I have been an introvert all my life and never had issues talking with candidate when it comes to work. Now I hate taking calls and avoiding any/every human contact possible. When someone calls regarding any interview schedule or if my parents can me, I literally bark at them. Life as become so difficult and need some medical help. Exercise and yoga is not helping me to control my anger issues. Need help at the earliest. Kindly advise on the same.TIA