Have Been Under Stress, Unable To Recover From Past Failures

Hi Dr, Im Anil,27 yrs, i have been in stress since long. All the activities i do and study gives me a temporary relief, when my day is about to end i feel like loosing something and doing something worthless. Unable to recover from my past failures. I was held in final yr practicals, denied my certificates on time by instutution for which i have to forgo my PG seat for which i got eligibility through entrance. All this happened 3yrs back. Since then im unable to prepare for another entrance and had to compromise myself with Fellowship Program. Financial Problems are raging the mess. Unable to attend classes, im unable to bear the fact that i have lost the oppurtunity to study the subject of my interest and in the college feel insulted when other PG s do what im not allowed to do as a Fellowship Trainee. Im surprised that when i look at my past 3 yrs, mostly i was under sleep inducers.im preparing for entrance now and unable to concentrate for long, Pls help me sir