Need help with biting

My 4 months old staffy doesnt stop biting , we are very patient but she does not stop . Nothing works . She just likes to bite hands and legs not toys lmao

We are desperate . We have tried kongs , They only work of They have food. She is very cute and calm but quem she starts biting , nothing stops her . In 5 days i can start to walk her ( took last vaccine this week ). Maybe that will help ?