She is still a puppy, and is going to chew.
This may seem sarcastic, or too obvious, but it isn't, and is easy to forget:
* If you don't want something to be chewed, you need to keep it out of reach of a dog. That goes for puppies, and it will go for her
throughout her life.
Look at it from a dog's point of view. A dog has absolutely no idea that a rope toy is OK to chew and a Lego isn't. Hence YOU (and family!) need to keep *everything* from kid's toys to watches to socks and shoes off the floor and out of reach. This is not just for your sanity
and to keep your things safe -- it is to keep *your dog alive* (this is just the same as child-proofing a room! A toddler likewise has no idea that s/he can be hurt by a pair of scissors, or a bottle of pills). A dog that swallows a lego or a sock or a piece of a watch could easily be a dead dog within an hour or two. These are very, very dangerous items for a dog to gain access to at any time, as they can lacerate the stomach and intestines or, in the case of ponytail holders, string, ribbon, socks -- can entwine round the intestine and kill the dog. If you need to take your dog to the emergency room it may cost you hundreds to thousands to save her life.
So: get all that stuff off the floor and make it a rule that kids put their toys away. And/or you will need to really limit your dog's access to any rooms where such things might be left on the floor -- start closing doors off. That alone (prevention!) is going to solve a lot of your probems.
The second thing is to start actually training her (by redirecting) to chew on acceptable toys. That means teaching the command leave it and drop it, as a matter of importance right now. Also make sure she has adequate chew toys for the strength of her jaws (most likely she will be eager to chew til about a year old, then the habit will fall off. Young dogs do not just chew when teething, they chew til adulthood to develop their jaws and as their main way of exploring their world, just as babies like to stick everything in their mouths). Also you need to teach her patiently and with rewards, to leave unwanted chew objects and distract to something acceptable for her to chew.
If you haven't had her in a rewards-based obedience class she really needs to go as this is an important age to set down some training basics and a good instructor will help to teach you leave it and drop it, and can give general advice. I recommend looking for an APDT trainer (
www.apdt.com for a list in your area around the world).
Finally if she is chewing furniture you can try getting a bitter anti-chew spray like bitter apple, but for some (like me!) it didn't work at all. :lol: The best tool for stopping unwanted chewing is: vigilance and prevention.