It is very common to experience mood changes like irritability and anger before your period, often linked to PMS or Premenstrual Dysphoric Disorder (PMDD). These symptoms are highly manageable. First, lifestyle steps like regular exercise, limiting caffeine, and stress management can help. For medical treatments, Selective Serotonin Reuptake Inhibitors (SSRIs) like fluoxetine or sertraline are highly effective and can be taken daily or just during the premenstrual phase. Combined oral contraceptives can also help by stabilizing hormone levels. I highly recommend discussing these options with your doctor to find a personalized and safe treatment plan that works best for you.