I prefer to email, im or text rather than talk on the phone. I find that when I am really upset about something or when things are really bad ( like I am depressed) I isolate myself and don't answer the phone for my friends, etc. I think what we have to do is practice opposite action when it comes to this and act opposite of how we feel. Maybe you could start out by telling each of your friends a little something about your day each day.That could be a start and could open up the door to more in depth conversation. Good luck!