instead of trying to turn on the spot with them try to walk them round imagine you have to walk round a car tyre this makes them easier to control and they are less likely to swing round with the momentum, hope this helps
its also a lil easier if u start to lean a lil to the side your turning as you come into the turn and after u make the turn try to keep em turned the opposite direction to keep them from crossing in front of you and smashing together or hitting ur shins. im not great at it but thats a couple things i try to think bout.when i first started i had WIDE turns.