@Putyourdamnshoeson. The puppy blues are really common, it’s a huge disruption, your sleep is being affected. It’s normal.
I was ready to redone ours in the first couple of weeks. She’s a year now,well behaved, gentle, good recall and completely house trained. And we adore her.
There’s a Facebook group called dog training advice and support that is brilliant for puppy advice.
Also download the happy puppy book.
He shouldn’t be pooing in his crate or pen, you need to take them out to wee and poo half hour the are awake, after playing and after a nap.
In the night they’ll need to go out last thing then once or twice overnight.
You could put them in a bigger pen to sleep overnight with puppy pads, or leave them in the kitchen with pads on the floor. But I found it easier to have her by me and she let me know she needed to go out. Whizz downstairs, in garden, back upstairs, no playing or interaction.
She started to sleep through quite quickly.
Start with little bits of trading too, settle, sit etc. Get a snuffle mat, or treats in old toilet rolls in a box, or wrapped in newspaper. If they are being manic, they need to nap...so in crate with blankets over top, or in their bed or chair.
They need way more sleep than you or they think.
It’s much easier when you can take them out.
But the first 2. To 3 weeks is very hard!