I feeling very depressed from last 5 months. Most of the time of the day I just spend on my bed. I don't like hangout with friends. I don't like to do exercise or any physical work. 
 Currently I am preparing for University entrance exams but I am not doing well. I have lost the momentum in my studies. And I have not spend a single hour on my studies from 2 months. This made me feel unworthy of myself. 
(I'm not very good in english, so please don't mind it.)
I'm not very rich. My parents have spent a lot of money on me, so I can prepare well for the entrance exams and get admission in the best universities of my country. For preparing for exams I move to new city and take admission in an institute. In that city, I live alone and I do not have any friends. I also do not like to go to the classes from last 2 months.
This situation made me feel that I should kill myself.
I have tried 2 times But I do not have enough courage to do so. 
My girlfriend also do not give enough time to me. I'm in a long distance relationship with her. She said that she is very busy nowadays.
 This made me feel worse. I always share my problem to her, Sometimes her advice helps me a lot. But now I am feeling worthless, empty and much more.