I'm with you too and the biting is just out of hand between 6-8pm every night. Our sweet guy turns wild every night. I just ordered two more teething toys to try from Amazon LOL. We yelp like another dog would and sometimes he stops but if he is too wound up he won't stop. We continue to redirect to all of his toys and then put him in his crate if it's just too much. I will try the command and ignore him for a bit to see if this might work. My 6yr old son is scared of puppy right now and also a bit jealous LOL. I have two older children 10 & 13 helping but I don't think they realized how much work a puppy was
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Our Toby is 10wks old and I'm hoping this will get better with time... We are taking him to a puppy social on Saturday morning to see if he will get a better idea of how not to bite too hard. Maybe you might want to see if you can find one in your area too
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Keep us posted. I just joined here today in hopes for some answers to the same issues you're facing.