Ali-
Breath, Dont worrie about an hour from now. Think about the very moment and not popping that pill this minute. Then move with the minutes as they pass. Breath deep, close your eyes and clear your head. You too will get though this.
You have some support here. But you really do need to look into some face to face support. Being meetings, rehab, or counciling. It is ok not to be able to do it alone. Look at all of us. We need help and support too.