Sometimes, if you can't find an exit, if you don't want to live, just look inside of your soul and try to understand that someone in this world really needs in you. The way you're gone won't decide anything. Soon or not we all will be there, but now just catch the moment and live your life.
Even if someone you love left you, try to pluck up and to go through it. You can't let yourself be weak. This life is worth living, so don't regret about any minute of it. Take from this life everything and learn from your own mistakes!