I don't drink and I don't live a lonely isolated life. On the contrary, I have friends and family I see often. Just because someone is sober doesn't mean they have to be a recluse isolated from society.
A good sober life doesn't just fall into your lap. You have to make it the way you want it. Find what you like to do and enjoy your hobbies.
My life isn't perfect but I've never been happier.