Dear sir/madam I m 25 vergin but i am tired to sex earlier bt somehow i got nervous so cant erection properly..so after that i feel anxity that what going wrong with me.i never had seen me before in earlier..i m so confussed i so stress last 1year my libido is low but when i get exited my erection is good , but when i m forcefully musterbates its wont work..my doctorl told me its a psychological issue....but my mind is stuck of this anxity...i cant sleep i cant eat i cant concentration...help me help me