QQ on an A high flop.

You should raise pre flop to make smaller pairs and hands like AJ A10 make a mistake by calling you.
By just calling each of their raises all the way to the river you have gained no information as to the stength of their hand. You should have reraised on the flop. If they call then you are probably in trouble.
the river raise is a mistake because the only one who's calling your raise has you beat.