Morgan was the most energetic and trying of pups, so I sympathise with your situation. OH's ankles bore the battle scars for quite some time, and family members sat with their feet tucked under them to avoid the crocodile. He often seemed manic too, overly excited and unstoppable! We had to move loads of things out of his way, obviously he didn't know that the hearth-rug, sofa throws, cushions, doormats, the books on the bottom shelf, our bodies, etc etc, weren't chew-toys
We'd never had a puppy with so much pent-up energy before (ignoring the visitors who said he was wilful
) there were days when we were so relieved it was time for bed
"Time out" was about the only thing that worked as he wanted to be with us so much, saying "Ow" when he nipped us didn't work at all in the early days, it just made him more excited, although after he'd been with us a few weeks he did start to realise that he was hurting us and has grown up with a superb bite inhibition. It was certainly hard work in those early days, he had 2 speeds, frenetic and asleep
When he was asleep we were wary of moving in case he woke up and started again!
When he was (finally) able to go out, things got so much better, he had an outlet for some of his energy, his brain got tired assessing all the new things he'd seen. Time and persistence, being consistent in what you do will do the trick, it just seems never-ending at the time. He's a baby, he's got a little brain compared to ours and it takes time to assimilate and sort out what behaviour is expected. I look back on my human babies early years and remember how long it took to teach them to drink from a cup, eat without making a mess, potty training, dressing themselves etc. and it's very similar really!