Lesbian Problem

Hey, I’m posting this basically to see if there’s any other lesbians out there that feel the same way as me. So basically I’ve only realized I’m a lesbian for about a year now, I thought I was bi for a year before that, and I’m almost 23 now. I almost feel dirty or like I’m not a real lesbian for going my whole teenage years and thinking I was straight and having many relationships with men. I know deep down inside I am 100% a lesbian, and I was probably just suppressing all my feelings that whole time, but it still bugs me.