I can feel your frustration, I think we all have been there (I know I have). 10 months old is like the terrible two's in human years. As Dawn suggested you need to be consistant with the not allowing him to bite, time out worked for me and also I substituted her urge to bit me with something she could chew like her Nyla bone.
Make sure you baby is getting a lot of exercise before bedtime, I would also start a good habit of making him go potty before bedtime.
Don't give up, you will get past this and look to Yorkie Talk for advice we are always willing to help Also try going to your local Petco, they offer free puppy training classes, your puppy may benefit from a few of those also.
__________________ Cheryl,Mom to  SophieKate |