[BentleysMamax3]

My 8 month old yorkie is starting to bite everyone's hand..
For instance I would be sitting on the couch texting on my phone and he would grab my fingers.. I will tell him to stop, and he will stop and come back after a few minutes and do it again.
I'm also worried because I have little cousins who are always over at my house and Bentley doesn't like them.. But they don't understand that so when they try to play with Bentley, he tries to bite their face. My cousins are about 3, 4, & 5. It really scares me because I don't want Bentley hurting anyone.
Also his bites has become very hard.
I've tried taking my fingers away and replacing it with a toy, but that didn't work. He's such a sweet pup but I don't want him to be aggressive and hurting other people. So can anyone give me any advice or pointers I can use.
Thank you <3