you must control your poodle or he will control you.
you must teach him what must do, what must not do.
every owner had different ways to train own dog.
dog just like children, some stubborn, some calm, some do crazy!
Try use dog mouth muzzle to lock his mouth, when he bite or destroy your thing.
scold in front of your dog, and show him what he did.
ask him why he want do that, is that nothing to play?
until you feel that he realizes his guilty, and you willing forgive him only remove the dog muzzle.
try to cages your dog when he do wrong, give him some time to realizes his guilty.
leave him in cages for an hour don't go interact with him, if do interact just scold him 99.
P/S: Don't try to hit your poodle, this will make your poodle no trust in you.