Sexual problem. A problem. kindly help.

Hi, I am 29 years old (female)and I was previously diagnosed with Pcod at my early twenty. I am unmarried. 2 years back I had sex with my partner however I never orgasmed. It was a year relationship. Post that we broke up and all my sexual desire and interest were totally gone. Recently I am in relationship but we have not yet done sex. My problem is I have never orgasmed even after having intercourse multiple times. Moreover, I don't enjoy the process much. And I cannot last for even a minute or 2. I tried masturbating in order to find my sexual needs, but it just lasted for 30 secs to one min. More than a minute, I couldn't stimulate myself and all the interest were gone. Even when my fiance tried to stimulate me ,I could not allow take it for more than a minute. I don't cum and I feel irritated and disheartened as my sex life is going to be a problem. Kindly help.