I think you need to be fixed.
Deacking, if done correctly, is one of the easiest things to do.
Come in at a comfortably steep angle, fire a short burst of .50 cal, alter course (quick bank left/right and nudge back on the stick to line yourself for the next ack), fire a quick burst, rinse and repeat.
DO NOT wait to visibly see the ack being destroyed... you'll lose some parts guaranteed.
In heavily acked areas, work the edges first, and then make your way in. Dont expect to nail every ack in one pass. Patience is required.