Depressed from past 10 months. Each day.

I am an engineering student. I live alone in a rented room outside college ,because that's only left option available to me. From past 10 months (since Jan) I feel too much depressed and lonely.I don't have anyone to talk to.I have no friends,cousins.My whole day are spent waking up , going classes and then sleep.I feel too much fed up.I don't even like to wake up.I just wish one day naturally I don't have to wake up and I get over from all these.I feel tired all the day and want to escape every small work .I prefer lying on my bed all the day ignoring my work. I mentioned past 10 months because before that my life was good as I had friends,I had a girlfriend.But one day after a fight ,she falsely accuse me of harassment.That incident had put a too dark memory on my mind.That girl has moved on in just one week.But that accusation, that boycott from all peers of my college  haunts me everyday.I feel crying every single hour.I have no one. Please save me . I'm dying mentally each day.