How to get my puppy to stop biting!?!

My pup (10week German Shepherd) has been biting a lot lately I can’t even pet her without her going for my hand or arm. It usually doesn’t hurt unless I let her keep doing it (practiced bite inhibition) she bites harder. I’m worried because I know she will grow quickly and so will her teeth! I have 2 little ones and don’t want this to be a nightmare waiting to happen!!! She usually bites at their feet and only licks face but today she licked and then snipped at my daughters cheek (not deep at all no mark) I just put her in time out in her kennel. Any advice please help!