If you're losing old friends, because you're not drinking, maybe you were never really friends. A true friend will love you no matter what, in the good times and bad times. I haven't lost any friends in sobriety, in fact I actually recovered some relationships that had become distanced because of my crazy behavior. I even added some new friends to my group that I met who are also in recovery.
Friends don't just show up at your front door. You did something to get your other friends, you will have to do something to get new friends. If you're happy chilling at home, that's great, but if you're not you will have to find other things you are interested in to meet people.