I don't know how i thought about this post today. I am the same person who wrote that post 6 years ago. even my username is archived and had to make a new account to write here. The very thought of the situation i was in and the hopelessness surrounding me in those days makes me cringe. Nevertheless, I am very happy to say here right now that i am indeed pursuing my PhD in computational neuroscience from a very good lab in USA, and doing pretty good. The journey has been difficult and there was struggle but it was all fun. Thank you to all you awesome people who replied and gave me hope. My message to everyone in difficulty is just hang in there and never lose hope.