Is it normal i cant be sexually active with men my own age?

I have been sexually active from a verry young age, like 14. but its never with guys my own age. im a good girl and have never gotten an older man in trouble for doing sexual things with me. The first guy i fucked was 16 and i was 13. i hated it. he was so nervous and it annoyed me. so every man i have had after him has been over 20. is it natural i cant get sexual with men my own age? i have tryed to find i guy that turns me on that is my age or close to it, but i cant. it wouldnt bother me so much, but i have fucked men up to the age of 72 ( i was 16).