It’s just a game of statistics. The behaviors that are rewarded are more likely to continue. Ignore (not just don’t reward, even negative attention can be rewarding) the behaviors you don’t like, and reinforce the ones you want to see again. Catch them being good and reward it - have treats on you at all times. Ignore all bad behavior, and manage the environment to prevent it from occurring (he can’t chew your shoes if they are put away, etc). If the puppy is jumping on a child and the kid makes a big deal of it, it’s likely going to happen again - puppies don’t generally understand the nuances of human behavior, they just know that they got someone to react and that was cool. For kids, it helps to teach them to “be a tree” if the dog is jumping. Stand tall, and don’t react. Reacting (even with displeasure) will be rewarding and even running away can incite a game of chase. Stand there and do nothing until the puppy has all 4 on the floor, or even better, sits. Then praise. I’m fairly certain the book I recommended also talks about “sit to say please” to encourage manners and impulse control.
A note on extinguishing behaviors such as jumping or howling in the crate. There will be a period of time while you’re ignoring or being a tree that the behavior intensifies. This is called an extinction burst. This is the last hurrah before they give up and try something new. Do NOT give in during this time, it will only prolong the process. For example, you’re crate training and the puppy is howling. After 20 mins the howling gets worse and you get up and go comfort them. Puppy now knows that they only have to howl for 20 mins to get your attention. Next time it will take even longer to get the behavior to fizzle out. Also applies to birds screaming.
Same thing with teaching to relax. Don’t try to force them into relaxing when they aren’t ready to. You catch them in the act and reward it, but without disturbing them. I recommend Karen Overall’s relaxation protocol.
https://www.karenoverall.com/wp-content/uploads/2020/06/Protocol-for-relaxation_Overall.pdf
If you haven’t already, sign up for puppy class with a positive reinforcement trainer.