Congrats!
I got Henri at 9 weeks (before I even knew about YT) and part of me wishes they had kept him a little longer, he had biting issues due to not being with and learning from his litter mates and mom what was/wasn't acceptable. It was a struggle, but I trained him out of it and he is very well behaved now but it is better to not have to go through it in the first place. I hope this helps!