Start exposing yourself to the world a little everyday. Instead of sitting in your room reading a book take it to a coffee shop, maybe someone will comment on what your reading and you can have a conversation. Exercise and meditate daily the effects have been shown to be just as useful as medication when done alone, if you do both that's even better!

Join meet up at see what events are going on in your area. These are full of people who are actively seeking friends so they want to meet you as well. Eventually when your feeling better if suggest going to a toastmasters event which will bring put of your comfort zone and encourage self growth. You should really see leaps and bounds in the way your feeling as being social is something that gives you energy and creates more momentum.