Mental stress is so bad situation for a individual in public. Because of it you can't think another think like your duties phsiological and social needs.Long story short you can't move on with your life.The life just stop for person untill it ends.After person get rid of it,He or she can move on from where he or she left his/her life.

If you had it;

First try to keep calm and try to focus on some activities that can refresh your mind. One final word during getting rid of it please ask for help from your friends and family

GOOD LUCK!