A 30yrs old male friend of mine has always found it difficult to find a girlfriend. He has no physical problems whatsoever but suffers from extreme anxiety. I have tried advising him, but nothing seems to have changed. He's been living with frustration for almost all his adult life. He fears that he is not normal,and that the situation wont change. He is at the edge of going mad. Any advice/help on this situation will be appreciated.