Is the world really going to end in 3 hours?

usually what happens is people say: ''naa, that's not going to happen that's all nonsense...'' blablabla. Then turns out, it does happen. Could that be the case for the world ending? Cause everyones saying: ''its not going to end, it's all nonsense and a lie and dumb, ect..'' and then what if it really happens? I'm really supertitious so don't judge but I'm actually scared. Need some answers! :S