Suicide just isn't that easy unfortunately, if people could just leave this world reliably in such a straightforward way then this website would never need to exist. The night night method is known for being unreliable and I've read about failed attempts with it, but it's up to you deciding what method, there's information about methods in the suicide resource compilation, but if you came here looking for easy answers then there simply are none, suicide really is so unnecessarily difficult in this world.