What did Hitler do during the war?

Hitler was a bad man at most things.

His persistent meddling and confused command structure ensured the defeat of Germany.

As Rommel is reported to have bitterly quoted from Hitler's Mein Kampf " When the Government of a nation is leading it to its doom, rebellion is not only the right, but the duty of every man."

He was fortunate to survive as long as he did, but apparently most did not read his book.