A cat that bites and is not nice is eventually probably going to end up in a shelter or dead because most people want a sweet kind well behaved pet, not something that bites them or the neighbor’s kid (which will probably precipitate a law suit or the cat being euthanized).
Therefore when an animal bites me, the punishment is swift and sure, bring your hand up under the cat’s chin so its teeth clack together. If you do that every time the cat bites you, it will solve the problem quickly and simply. With a pup you squeeze the lips against the needle like canine teeth until it yelps once, you can do the same with a cat but it is more difficult because of the shape of their face so the clip under the chin works better.
This is not abuse, it is discipline for a completely socially unacceptable behavior. It will not damage the cat’s psyche or cause it to need counseling in its adult life.
That is what you do if you want to correct the problem quickly, if you want the training process to take months or years, try another method.