Causes of mental stress can be many, which need to be first assessed and then provide appropriate therapy.  Best is to take the first step of talking to a Counsellor and seek help. Do not ignore as stress may being part of your life that results in diabetes,  high blood pressure,  heart problems, sexual dysfunction,  emotional imbalance and other ailments that will make your life miserable.  Also you will go into depression  (there are many levels though). In Coimbatore, there are good Counselling Psychologist who can help you work on your stress and move ahead in life.