I'm sorry things are so bad I can relate to this feeling of isolation, but not to the degree that you mention here. I don't mean to dismiss your feelings but is it possible that you might have a little bit of thought distortions happening here? I'm sure that all off your professors don't hate you. Maybe they just have a good RFB? Either way, isolating yourself will make you feel worse. I know that from personal experience; such is the cycle of depression. Is there anyone that you can talk to? A counselor at the college?