Without peer support, life can be very difficult. Make sure you go to lunch with a group or at least one other associate. Don't spend all of your time alone. I suggest several things for you to try over the next few months. Make sure you are eating well and getting as close to seven or eight hours sleep whenever possible.
Exercise is critical to mental well-being.
Socializing is equally critical. Make an effort to get out and meet people. Treat yourself to dinner at a great restaurant. Go to sporting events, movies, theatre, museums, whatever. You really should speak with someone at the firm that might be able to help you through this trying time.