How to deal with loss of Libido.

I am a healthy male, workouts everyday. But from last 10 months I have totally lost interest in sex. I used to get wild fantasies with my ex, used todo those chats with her and get rock hard boner. But now the case has been changed, I show no more interest in sex, I am a virgin and I am really worried. I have lost confident after this problem that I would ever be able to have sex. I have tried having paid sex twice but did not got any erection, this was not the case before. Before whenever I used to visit spa centers I used to get rock hard boners from a single touch from the female massager. I don't know whats wrong with me, also before whenever I used to masturbate I used to release lot of precum before orgasm but now Whenever I masturbate I do not stay hard for longer and I ejaculate too early. I have already consulted two doctors online and they said its psychological, but if it was anxiety it should have been gone by now. I was fine until I was getting sexual urges but not anymore