Think before you do this thing. Will you solve anything by ending you? Life is about challenges and disappointments and we HAVE to face some unpleasant things in this life sometimes to really enjoy the happiness that we all want.
YOU WILL be happy again. You need to hang in there now when you are down and the fact that you are posting is now says you don't want to do this thing. You are crying for help so let us and others help you. You need support and someone to listen to you. We will listen and help you. You also need friends and maybe some professional help to get you through this dark period. Many cities have suicide hotlines to call and get counseling. They care and will give you what you can't give yourself now, a caring heart.
I hope you listen to us and give yourself another chance. You deserve to live and we deserve to have you in this world. Please get some help.