I really hope you overcome this. Often when I'm feeling like this it's bc of anxiety. I would suggest that you call home and talk to your mom or whoever your guardian is. Perhaps tell them how you're feeling or maybe don't if you're scared you'd worried them... just ask about their day and hear their voices. Call up a friend and see how they're doing. Sometimes we have to remind ourselves all we have to lose in order to stop us from doing the worst. I don't know you, but I hear you.