How do i handle my african grey parrot when he likes to bite and hes always liked to bite? :(?

This is normal parrots do not make great pets . They can be very aggressive. So many live awful lives as the only one. In the wild they live in huge flocks and keeping them in solitry confidments cause them nothing but mental damage. You can teach him not to bite. Parrots are like onwing a toddler but unlike a toddler they never grow up and as they can live 50 years plus that a long time living with a toddler. They are also moody and when they reach ual matrity very aggressive. Single birds tend to bond with just one person in a household and see them as there mate so any other humans are not tolerated to come near there human mate. And as parrots have beaks that can easily crack nut human flesh is easy meat to them. I would not recommend trying to bathe him. It will cause him stress and possble you serious bites. Birds don't need as to give them a bath. You can try giving him a shallow dish with tepid water in it so he can bathe if he wants but usual the best thing is to just give him a fine mist of tepid water from a water spray bottle. Most birds seem to like that.