Puppy biting

[Mairyhinge]

Hi, my almost 12 week baby is adorable. He really isn't and he's very clever, but the nipping, the biting and the growling/ chasing feet is driving me crazy.
We've done the 'ouch' and then turning away from him....not bothered.
We've done the alternative toy to address his attention....not bothered.
He literally eats or chews everything he can get and I know it's normal as he's a puppy, but I need to stop this or re direct him to stuff he CAN have, but he ignores us. He has chew toys, soft toys, a bone filled with marrow, almost everything he could wish for yet he still wants stuff he shouldn't have.
He trains well, he's well onto being housetrained, he will sit on command. He works for treats but this nipping barking Andy biting, especially feet, is exhausting.
Any advice?
Thanks

I stayed with my puppy in one room for many weeks (the kitchen) which was easy to puppy proof so not much to chew.

For the nipping the only thing that really made a difference was a short timeout as he tended to be very bitey when he was overtired. So a quick pop in his crate and he would settle and fall asleep.

Thanks bitey... it's worse at tea time so he may be getting tired, and it's exhausting so we do do a time out. Do they learn from that?!

It will get better as they get older and then when he used to do it he got put behind the baby gate, in his crate or behind a closed door for a minute or two. He quickly learned then if he continued to be bitey he got removed and he didn't like being away from us.