Also a good fact to note is that you don't neccessarily need atheist friends. My best friends and coworkers are all believers in some sort of religion, leaving me as the only atheist in our group. A lot of us also believe that your religion (or lack thereof) should have no bearing with your personal and professional lifestyles.
At the end of the day, you are the same person you were before. So don't worry, be happy.
At the end of the day, you are the same person you were before. So don't worry, be happy.