Help?

Hi, I'm Anneleis. This is my first time really admitting my issue. I don't know if this is really the category my post should go in, but its revolving lying and my strong problems with it.

I'm a sophomore in high school. I was the golden older child but now I feel like I'm just a disappointment. The lying started small, but now I lie about anything. I never really thought it was a big deal, then it became a matter of not getting caught. Now it just happens, before I can process it. Its usually when I drink. I have been caught three true times by my parents after lying about drinking, each time with a worse consequence, but I only feel bad for getting caught. I tried to come up with any possible lie to escape responsibility. I know in my gut, each time I drink, that I really don't need to and that I will just get caught and lie about it, but I cave each time.

After having been caught and really screwing myself over, I have been on the straight and narrow for the last 2 months in attempt to rebuild trust, but the other night I slipped and when my mom confronted me about it I lied. I knew what I as doing was wrong, even the other night, but I don't know how to stop. I hate lying, but at this point it just comes out before I can really admit to what I've done

I was hoping someone would have insight for me. I really don't like who I've become but I can't find anything to solve the problem.
Thanks

I guess telling the truth just once will solve your problem. You will gain confidence in telling the truth. It doesn't matter if a lie has already slipped out of your mouth. You can say, "sorry, that was a lie. The truth is ...."
A daunting task of course, but you can start practising on close friends first. You can even tell them in advance that you need their help. They will be only too glad to help!