OP here.
Thanks for all of your help, 4-ch. Earlier today, I found out that my ex already has a new girlfriend. I was going to kill myself. I really was. I cleaned my room so that my father didn't have to deal with a mess when I was gone. I was trying to think of the best method, and figured that death-by-train would probably be best. I just crashed. I completely lost touch of who I was and what was happening.
I felt so trapped, but then a friend called me. She's an internet friend that I've been close to for about six years now. She gave me a stern talking to. And then a gentle talking to. And then she began comparing my life to a manga.
I began cheering up a bit, although through tears. We talked for an hour or two or three (I completely lost track) about how my life is a manga. The odd characters, the plot twists, the story arcs... And then we moved onto what would happen in the future. We came up with so many amazing ideas that I suddenly couldn't wait for the future to come. I reread all of the replies you made for me, and I became even stronger.
It seems like today has been a very, very long day. It's like I had shut my true self away in some dark place, and suddenly I was able to break free from that. I can't believe the things I've said or done over the past few days. I was begging him to take me back, saying how I don't care if he did things that went against my morals. I put a boy ahead of my health, my career, and my future, and that's not that not me.
I suddenly feel refreshed and ready. I'm still a little depressed, I'm still having trouble eating, but at least I know that my mind is sane once more. No matter what I go through, I know that I always have someone that I can come to - you, 4-ch. You're always here for me.
I know I've grown up a lot today. I feel like I'm suddenly ready to leave my childhood behind and enter adulthood. I picked up an application for a local college, and I bought a new computer. I'm ready to kick ass and play card games - and I'm all out of cards.
Thank you for your support, 4-ch. It's amazing how just a few short words from some of you, combined with some rare and amazing people from /b/ have been able to have such an effect on me. You are all blessed people, and I love you all.
Thank you, 4-ch. Thank you so very, very much.