You had your chance.

I'm sick of this, there's no point anymore. The reason I did all of this in the first place is irrelevant, I still haven't returned to the normal Catie. I still haven't regained my life back. It feels completely useless to even try anymore, you've still got your hold on me. Maybe you're always going to.
You say you hate to be alone and you hate feeling like this, but what about me? All I can tell you is that "I'm sorry", but you never really ask why. I'm sorry you've become so dependent on me that even your own happiness depends on what I can do for you. I'm sorry that you've managed to completely shut out everyone but me from your life, and now you wonder why you don't have anyone. It's because you never picked up anyone's phone calls because you were talking to me or busy with me. You know what? That's fine, whatever. I guess that was the polite thing to do at the time. But you better make damn sure that I'm happy and I'm always going to be there for you before you do that. If you're going to make my life miserable and drive me away, you better make sure you have a back up plan.
You're in charge of your own happiness, and for a long time I didn't realize that. It wasn't until about a month ago that I did. So in an attempt to regain some happiness for myself, I told you the truth and what I really wanted to do. And I did it, but you just don't quite understand. I want to be myself and I want to do what I want. Call me selfish or call me wrong but I just want to do what I want to. Freedom. Whatever you want to call it. I want to be able to hang out with someone without question. Without being on edge all the time, wondering when I was going to be interrupted and have to stay on the phone for an hour, as if that hour was a reflection of my love for you. It always had to be more then an hour. I want to be able to go out with my family and make mistakes for myself, I don't need you riding on my coattails.
Sure, I've changed but don't you think I'm fucking allowed to? I'm 18 years old. I dont want my fate sealed anymore. Especially not with this.
I want to be myself. I want my own life. I want you to stop blaming me for your unhappiness because I never blamed you for mine. 2 fucking months I was driven crazy by it, but now I'm attempting to gain control and it's getting really difficult.
So do what you need to do, but don't you dare get in my way.