He sounds exactly like my 1 year old lab.
However, it's constant constant training and stimulation every single day. And even after all that he still has a lot of energy.
He does jump up and nip us, a lot of the time out of excitement when we've been playing with him and also does it in the garden, but he doesn't do it as much as he used to, so we're getting there.
At this point, we stop all play and put him in time out, behind a baby gate in the kitchen.

Also lead walking, he pulls, I use a gentle leader, which is also a head collar, but I am putting in the effort to train him to heel, getting him back by my side, as a head collar shouldn't be used as a quick fix.

But yes, he is still a puppy, I've met labs that are two years old and they are still very excitable.
Don't give up on him, I would also advise training classes, I hopefully will be taking my Lab to classes very soon.

__________________