am I thinking too hard?

We have a 16 week old puppy, we got him at 11 weeks. He is AMAZING at some things, he sleeps in his crate 12 hours at night, he takes all naps in there wonderfully, no barking or freaking out. He has a lot of adult teeth and doesn’t usually grab/chew on things such as shoes, random items(sometimes he does) he hasn’t had any accidents in almost THREE weeks. He’s golden. BUT- we’ve been working with a trainer since we got him and every day during lunch I do a training session with kibble and he does great during training. He knows sit, down, stay(50%), heel(50%) and recall is semi good. Sometimes in the house he just straight up ignores us though. We have him sit when we take leash off and sometimes he just ignores us. Also in public everything is OUT of focus. He doesn’t heel, he pulls, acts crazy, he won’t sit, etc. We are also teaching settle on a mat in public. I have him lay on the mat and give treats when laying, but he seems to be regressing with it almost and keeps standing up etc.

I’m just so upset as he’s so amazing in another ways and I have never felt puppy blues until now 🙁

Tips on all of this is very appreciated