Christians I am embarrassed of my religion?

If you are truly a Christian then celebrate that fact! You are a child of the King, the Creator of everything! If you feel uncomfortable however it may be because you have never had the opportunity to really dig deep into a relationship with God - and the only way to do that is to have those conversations, to read your Bible and to know exactly why you believe the way you do. Go to church and learn! Read your Bible and learn! Know why you believe!