How to deal with the frustration of doing PhD at a low-ranked university Though I did my bachelor's at a top-notch college, because of low GPA I had to settle down for PhD at a low ranked university. Now I see that there is lack of intellectual atmosphere and very few people to discuss academic stuff in and around my area of research. I discuss with faculty, but it would have been nice if there was a good graduate student atmosphere which is lacking. Now I get frustrated often with the fact that it was my low GPA which led to all this. Also in general the graduate student atmosphere is very discouraging. 

What should I do to make my life better? Some people tell me to mind my own business and not worry about the environment. But to me no peer level discussion leads to feelings of loneliness.
Stop whining and start kicking ass.

Work hard with faculty (and undergrads!) that you respect, do some awesome research, and then (if you are very lucky) move to a better department, either as a PhD student, a postdoc, or even a faculty member.

Meanwhile, own your past mistakes, but forgive yourself for them.  You put yourself in this situation, but holding onto your frustration and loneliness, instead of doing the best with what you have now, is only going to keep you frustrated and lonely.

(My undergrad GPA was 2.4/4.0.)