all i can suggest is ... if your irritability is directed at folks ... try to take a deep breathe and think how you would feel if you were spoke to/treated the way you are tempted to talk/treat them in that moment. easier said than done i know but even if you have to walk away for a minute and take it out on something inanimate (i.e. slam a door, punch a cushion, kick a can) ... sorry but i'm not brilliant at controlling my emotions myself so that's all i got.