Arrrghhh my 5 month old dog puppy is sooo cocky its unbelivable!!
He takes the micky!!

please tell me he will grow out of this 'make me :P ' stage! Im going crazy!

I wouold expect it to get worse before it gets better.   Consistency in training is needed, and expect this to take at least the first year.  By two you will suddenly realise that he is becoming a well mannered grown up (with the training of course) :D