Never ending cycle (слэш)

After the war in 1998,Harry went insane.
To many people had died,to much was destroyed and there were to many lies.
Harry went missing and thirty years later he comes back.
Far stronger than anybody ever believed he could get,he takes over Britain,later Europe and than the whole World.
Nothing and No one is safe in the face of Harry Potter.
Chaos and fear rule the world and his complete control becomes his end.
Harry Potter dies at the age of 68 in an assassination attempt by one of his inner ranks.
But time is just a human invention to give structure to their worthless lives.
Harry awakens from his death in the body of his eleven-year-old self with hopes of revenge and a surprisingly loyal servant.