I feel guilty about my lying.

I have lied about everything. I have no real friends, because they don't even know the real me.
My mom left my family when I was little, and ran away with her drug dealer, leaving my dad with 5 kids. I've never forgave her. I've lied that my mom was dead. I've lied that my mom was on vacation in Mexico (she went to Mexico a lot when I was a kid, even though she's 100% Caucasian, so I had a lot of postcards to show people when they asked.) I didn't want to explain how she's a drug addict who cares more about heroin than her kids, so I kept lying about her. People would ask me if she is mexican, and I would continue lying. I lied I was half Mexican just because it fit my story. One of my best friends thinks I'm half mexican and I feel like such a dick. My other friends think she is dead so I can't let them ever talk about it.
I used to enjoy lying, I've lied all my life about everything. Friends, school, grades, boyfriends I never had, experiences I've had.
-I lied I got the lead role in a play when I suck at acting and got a C in Drama.
-I lied I didn't make it on the cheerleading team, even though I never tried out, to make people feel bad for me.
-I lied about tutoring other students.
-I lied about my brother being my twin brother.
-I lied once about some details in a court case. Don't worry, It didn't affect anything majorly, it was just little white lies after I was assaulted.

Lies come naturally to me and I can think of them super easily. I had a job interview recently and never studied any questions, I just took every question they gave me and lied about it. "Have you had any experience in a work environment?" I lied about working a job I never had, and lied about super small details that didn't even matter. It's scaring me how easily I lie to people and how much I do it.
I'm so stressed and guilty because I feel as though no one really know the real me, and I'm stuck in so many lies that I'm stressed out about keeping up. I'm a 16 year old girl with absolutely no experiences of my own, and my whole life is a lie. (very dramatic, I know).

It seems to me that lying has been an integral part of your life, having your mother leave at such a young age can definitely have an impact on it. I have the same problem with lying and I'm slowly changing my ways.

I've taken advice from someone here telling me to catch myself when I'm about to lie, and think about it. "Is it worth it? What will I gain from it? Who will it hurt down the line?" I've made great effort to catch any lies I was gonna tell and instead tell the truth. Telling the truth may be hard sometimes, but it's gratifying when you tell it. Yeah, sometimes the truth may hurt but if you get caught in a lie you'll look that much more worse.

I suggest you start by coming out to your best friend and talk to him/her. If he/she is your best friend I'm sure you telling them the truth that you're not part Mexican won't affect your friendship. Think of the small victories in an even larger battle with yourself. Take any victories as you go. I hope this helps.

Well you have done a lot for such a young person! But good for you that you are recognizing you need to change things again at such a young age. Tomorrow we lie like you said the harder it is to remember what we lied about and who we lied to and it will end up making us crazy. And again being so yeah yeah it would be a good time to fess up to everything, maybe to one person at a time and get yourself out of the mess you are in. Your life will be much happier, much easier and you can move forward and be the person you really truly would like to be.

I meant to say the more we lie the harder it is to remember...