Find a therapist, talk to your parents, talk to friends. Get to the root of the problem and fix it. As KnightAlmighty said, "Nothing in the world is worth dying for." This is very true, no matter how bad it gets. Death won't do anything positive for you. People will degrade you, you'll hurt the people around you, etc.
I will not note u but I'll leave a very important comments here.
talking about suicide. I am just talking to a one friend fighting for cancer. she was crying telling me she hope she can live a longer life like me. while u? ur very lucky u have longer life than this friend of mine but u will just waste it that easily!? the hell
A true suicidal wouldn't find any of these things comforting, rather more painful. My advice is to stop being so melodramatic and claiming suicidal tendencies whenever you are feeling down, because eventually it'll mean that you end up alone. Stop crying wolf and learn that running around saying that your thinking of killing yourself is one of the signs that you're really just attention seeking, but in the long term this behavior is going to end up getting you the opposite of what you want.