Hi, can I join you? Bit late to the party but stumbled across this post when googling and it is by far the most supportive and unjudgy puppy thread I've read.
Sparklepup is 20 weeks old, we got him late at 14 weeks and he hadn't had much training etc so it's been a tough 6 weeks.
He's been very bitey, sometimes it feels a bit aggressive, but we decided early on to use a crate because he wouldn't settle to sleep and he definitely need more sleep. So he/we have got into a routine of putting him in his crate for naps that is pretty much clockwork and it's definitely helping.
It's definitely getting easier but we have a lot to work on.