I did the exact same thing. When I was younger, I wasn't allowed to be the person I wanted to be. Many of my friends were older, and I felt I had to impress them to keep them around. When I tell you I lied about a lot, I mean literally everything. My age, my place of birth, even told them my parents weren't my real parents. I figured they were just tiny lies, but as I grew up around those people the lies stuck and I was always lying. That is, until I met a new friend, and I took tiny steps at telling the truth. i told my real age, I told them I was from here, baby steps. Essentially, while it seems hard, you can stop. Think about what you're telling before you tell it. Ask yourself, "will I want to continue this lie for years?" Because you don't. Just be honest from here on out, and your real friends will accept you and even be relieved you trusted them enough to be honest.