9 month lab owner - have had most of the behaviours you mentioned and some of the things that have worked so far...
Consistent, routine, repetitive reinforcement of what you want with everyone on board and everyone doing it consistently (and agreeing not to get the hump if they get a reminder!) Though don't beat yourself up if you slip up as we're all trying our best!
The jumping up that was cute with a small pup and now bloody dangerous with a 32kg pup - we tried the firm but gentle replacing of him (not pushing him off, placing him off) for ages and it was hit and miss it. Read a Lez Graham article I think and suggestion was to use more dog body language so rather than walk away from him (my natural instinct that actually allows him more bl**dy leverage to lean up against me) we started walking in to him. Totally different body language. Totally confused him and he had nowhere to go but down. We didn't march into him to throw him off balance (got to think of his still developing joints) just slowly walked into him and he would remove himself. Within a few hours he'd pretty much stopped. He does still go to jump on visitors but we then trained him to go to his bed/crate when people come in and sit until he's called to say hello - we ask visitors to ignore him on arrival, not even eye contact and do the walk into rather than away and it's getting so much better.
Chewing - we've been lucky so far that his constant supply of ostrich bones, rubber Kong toys, pizzles, antlers, frozen stuffed Kongs have kept his chewing under control. He clearly has real bouts of teething/teeth/ jaw settling pain as he'll gnaw on an empty Kong for ages, drooling, to self soothe. From day one we would pop a chew in his mouth when he went to nip and he will automatically grab a toy when he wants to sit in your lap. When we first started using leads he'd chew them mainly because he likes anything novel so we made it kind of boring for him, just left it lying around with his other toys and chews so it wasn't that exciting. Cannot recommend yak, ostrich and split antlers enough! My husband was also very, very patient with teaching him bite inhibition - now if he nips or puts his teeth on one of us through play or tiredness a sharp OUCH stops it and he immediately licks where his teeth had been.
Recall - selective and slow more than anything. He's highly food motivated so if there's a treat in the offing he behaves like it's an army drill showing me he does bl**dy well know exactly what's being asked of him but I remind myself he's a teenager. It's going to take time.
For me I've found the reinforcement day in day out of absolute basics of sit, down, touch, stay really help as they can break a pattern of frustrating behaviour. Just before he takes himself to bed he has a half hour of wanting to dig and scratch at the back doormat but a SIT breaks that and is a positive thing so you can fuss him when he's done it. He's allowed up on our leather sofa but not to bounce all over our laps but to chill nicely so again down or sit reinforce this and when he does it we really fuss him.
Pulling on the lead. Good God I've had my ups and downs with this. His walks are snuffling "enrichment expeditions" - we may cover about two blocks in 45 minutes going back and fore, back and fore, stopping and changing direction, being called back to heel, trotting along then stopping dead and sitting. But he seems happy, he's mentally tired and he gets proper exercise off lead and playing. Took me ages to get my own head around that. His routine am/pm "walks" really are to tire his mind out (very keen sniffer), learn to behave safely in the street, pass and mainly ignore other dogs on lead and get his bowels moving 
I think 9 months in, I've finally started to relax a little and not think I'm the worst dog owner in the world for not having the perfect at my heel loose lead non jumping non excitable super trained dog. He's had and has his moments of being a real pain in the ar$e but generally he is the loveliest natured boy who lately just wants to snuggle up, lean into my legs, or just be near us. Touch wood, I haven't felt puppy blues for a good few weeks!
I really rate the advice from Lez Graham for our lab www.thepetgundog.co.uk/ we've done lots of the exercises for fun and he loves them