Hello... im having trouble getting my malinois to stop biting and mouthing. Hes currently 4 months old and hes quite playful. I've tried just about everything that ive been recommended to do such as making a high pitched "yipe", replacing the biting with a chew toy, grabbing the muzzle and saying no bite, tapping the nose. ive been told when hes biting my hands to push my hand to the back of the mouth which has not worked. ive praised every time he stops trying to bite me, but the more i try to resist the biting he seems to get a bit more hyper and wants to bite more. If anyone could give some advice on what to do that would be great. Not sure if this is something i should just keep working at? or if that this is just normal puppy behavior and will grow out of it.