I can't have sex

My ex and I had a relationship for 2 years during the first year we didn't have sex at all bc I was trying to stay virgin until the day I get marry cuz I was raised by a really catholic family. In our second year he convinced me you know 🙄 but I couldn't do it. We tried for months and it hurt a lot . When finally he got to penetrated me I couldn't feel anything like nothing at all and it still hurting. Well we broke up and I still haven't had sex. I tried masturbering but I didn't feel anything unless I touch my clit..(I'm 19) .. does someone knows what's wrong? Do I need to see a doctor? ..