At that age, biting is incredibly normal. They don't understand how to play with humans yet, because they played with their mouths with their litter. That breed combo will also add to the incredibly land sharkiness!
When puppy bites you, redirect to a toy and and praise her for biting the toy and not you. If she continues to bite, get up and walk away. Step over a baby gate, close a door, whatever, just withdraw attention for a few minutes. Then try again. If the pup continues to bite you, it may be time for a time-out period in their crate with a chew to calm themselves.
This is a process that takes an incredibly long time. It's months of patience and consistency, but it will get better. Bites will get softer, and the dog will begin to think more about where they put their mouth.