I cant cum

Phoebe

I am 19 going on 20 this month. I have tried using a showerhead, my fingers and my fiance has even tried. But I just cant cum and I dont know why. It bothers me as I want to but I just cant. When my fiance tries I just freak out on him or he rubs me too raw and cant continue. I can get as far as when my body goes tingly and then i cant continue. Some one help me please