Just wanted to chime in and say that I've heard this exact story so many times. I don't know if you've checked out any secular or atheist groups? I'm just thinking that it might be a good way to connect with people who share both a similar background with you and who are also looking for new friends. For example, you might start by checking out The Thinking Atheist on youtube and listen to some of his podcasts. I've generally found that both Seth and the whole community around TTA is very friendly and welcoming, so that might be a start.