After clinical check and running tests the doctor confirmed that my sex drive is healthy
and functioning
and that my problem is purely psychological.
Performance medications help sometimes help (sildenafil, tadalafil, vardelafil, .. ). But in other times they just don't have any effect. I have been told that as long as I have performance anxiety, all the viagra in the world will not help.
To over come the problem, my doctor prescribed me Trazodone Hydrochloride 100mg every night.