You need to tell someone in your real life how you are feeling- you can't get real help on a message board. Someone that knows and cares about you will be able to help. If you don't want to tell a friend or relative, try getting in touch with Lawyers Concerned for Lawyers (
http://www.lclma.org). They understand the pressures and rigors of law school and likely have a chapter near you just for this purpose- to anonymously help you when the pressure becomes too much. There are lots of people willing to help, and if you let someone in your world know, you can get on the path to getting through this feeling.
If you ever feel like you are in crisis, call 9-11 or take yourself to the emergency room- help will start immediately. Whatever is happening, you can work through it with the right help and support. Just don't make any bad decisions that can't be taken back.