Re: biting and jumping!
At 9 weeks of age, you must accept this behaviour. It is a natural way that puppies learn bite pressure. SO that they can play bite their puppy friends without hurting them, but hurt when they need to. So, it is a process that you will need to accept as part of having a puppy.
I am not suggesting that you take no action when he does, as this would be foolish. But, what would mum do if pup bit her. She would correct pup first with a yelp, maybe a nip and perhaps then pushing it away, or walking away and ignoring it.
Others have suggested that you "Yelp" in pain when pup bites and this is a great suggestion. It tells pup it has bitten to hard. Also, remember, pup is learning how hard it can play with YOU. Another pup would put up with way more bite pressure before yelping than us humans would. So it's learning that it cannot bite you as hard as it did it's littermates.
As for the jumping, welcome to a very hind leggy breed. Now once again, I am not suggesting you cannot correct it, but don't get too stressed about pup doing it. It's a natural thing to get your attention. After all, your 5 foot taller than him. How else would he think to get your attention???? You're way up there!
Gentle No's and effective body language will help slow and eventually stop the behaviour. But, you may find it stops after a few months or you may find it stops when pup turns 3. Depends on what sort of mindset pup has and how consistent and repetitious you are.