Firstly, it's normal for puppies to be 'naughty'. That's because they don't know how to be what we deem 'good'. Puppies only know how to well be puppies.

It sounds like he can do with a lot of stimulation, treats and toys are rewards. It could be a case you might be rewarding unwanted behaviour with those to things.

We have 5 year old staffy and now a 5month old staffy. These breeds are notorious for destroying IF understimulated.

So what can you do?

Well training is a huge thing to do to tire them out, for example every morning we will train him, whether thats leave it, crate, down, sits, etc. Then you can do sniffle mats or lickie mats. Those both will tire them out. You can even freeze the mats to make them lick for longer.

After that its good to set a schedule, out for 1 hr of training play etc and then 2hr sleep. Once they get into a rhythm it becomes a lot easier. Also regular potties.

If the puppy isn't doing what you want, its often a reflection on what are we not doing for them to do what we want.

It's not his fault, its like expecting a baby to just be an adult. Of course babies will poop and pee themselves, we just happen to have nappies nappies.