
1. Join a graduate student group at your university, like the Math Graduate Student Association, Black Graduate Student Association, etc. Organizations like these offer support, networking, and social activities three things that always benefit a graduate student. In a graduate student organization you are guaranteed to find at least one person that you can relate to.
2. Get a hobby (i.e. working out, volunteering, hiking, etc.), I am not encouraging you to go and get overly involved with some cause or to start working out 3 hours a day. However a healthy diversion from studying and research is needed from time to time. Remember it is physically impossible to work 24/7 because your body requires food and rest, but a having a hobby can give you the time to clear your mind thus resulting in more efficient studying and research.
3. Relax and tap into your faith. No matter what you believe in Christianity, Islam, Buddism, a higher power, or karma, some things are out of your control. You have to keep realistic goals for the completion of your program. I know it's cliche but Rome wasn't built in a day, so you cannot earn a doctorate in a year, but maybe in 4 to 5!