You don't understand how forces work.
If you have two magnets, attached to the craft attracting each other, one will pull the craft upwards and the other will pull downwards equally. The net result is no movement at all.
The first mistake you're making is thinking that you're the first one to come up with this idea - ignoring every other scientist / crackpot on the planet.
You then continue to ignore the fact that there is not one vehicle on the planet powered in this way - because it doesn't work.
Again, I ask you to grab your legs and pull upwards - can you fly? Jokes aside, this is exactly what you're proposing here.
Strange I never said anything about attraction,look at the picture carefully everything is about the force of repulsion.