Im am gonna get plastered for this!!?

Is it possible that Dinosaurs never existed? I mean we dont even see the real bones in museums, and when they do supposedly find the bones, how do they know or prove their dinosaurs. Can they possibly be made up to manipulate our earths history? And another thing-how come they are all extinct? They all just disappeared, vanished? A comet hit the Earth and boom, gone, wouldnt Earth have been destroyed if that was to happen? It doesnt make sense, and No, im not a Xian. Im starting to believe everything were taught in this world is a lie to hide us from the truth, but we dont know the truth.