Faked sex for years

I'm so upset. My partners and siblings have ALWAYS been the only people I've had sex with. I had a bad experience early on with a guy, he was bad to me and made me uncomfortable and hurt me. Ive never been with a non-related person since.<br><br>I just learned that we are related to a good chunk of people and my whole life has been a lie. I am upset. I dont know what to do.