I have a similiar problem . I normally have to imagine myself as a 10 year younger me when having sex . It is odd but i know why i developed this . When i was younger i was with mainly women 10 or more years older than me . seeing how my partners valued my youth so much it became a turn on for me . I try and stay in shape and such to be as close to that body size but it is tougher to do year over year . Still though if i see my reflection during or before sex i have to get it out of my head before i can aroused . I don ' t know if your in a relationship but whenif you are try and mention this gently to your partner . It is better they understand how you work so you both can please each other . Maybe they can also help bring you to a point where you can orgasm without roleplay as well .