Congrats on the new pup. Unfortunately she was taken away from her mom and siblings too early, it should have been 8 weeks at the earliest. I know two weeks difference does not sound like much but it is. For this reason she is a bit too young to grasp much training. Trying to take your shoes and bite you is perfectly normal for a puppy, that's how they explore their world just like a baby. She does not respond to "no or bad puppy" because she does not know what that means, for all she knows it could be a good thing, after all you do give her attention when she does it. You need to find toys she likes, maybe rope toys, kongs, squeaky toys, plush toys, balls, rubber bones, real raw bones, whatever she likes a lot. when ever she goes for your slippers move her away to her own toys and get her to play with them, praise her for playing with them. If you ever walk in and see her chewing her own toys make sure you praise her and maybe give her a treat. When does she bite your feet? when you are walking or sitting or playing with her or petting her? If you are walking, once again, redirect her to her toys and praise her when she uses them. if you are playing with her or petting her immediately stop what you are doing and redirect her to her toys. She NEEDS to chew and play, there is no way to stop that normal dog behavior you just need to make sure she is doing it to the right things.
Remember she is VERY young so she may not grasp the concept. Make sure you do not yell at, hit or physically punish her in any way.
For crating I would put the crate in your room at night so she can see/smell you which may comfort her. With such a young puppy she may very well miss her siblings and mom. To help with that you can use a hot water bottle wrapped in a towel to feel like another body and a ticking clock wrapped in a towel to sound like a pounding heart beat. they are very comforting sounds to a baby dog. Also I would feed her her meals in the crate. When she is in there and starts eating quietly close the door behind her. After the meal let her out (as long as she is not whining). NEVER let her out while she is whining/barking because then she will learn that behavior opens the door. Wait for a break in the noise to open the door. Also practice locking her in throughout the day. put her in and feed her treats from the back for being good. I would suggest putting something like a stuffed kong in the crate for her to keep her busy. Fill the kong with wet dog food or yogurt and then freeze it. That way it will take longer for her to get out and when teething starts the cold will soothe her gums.
Hope this helps, don't get frustrated as many puppy owners do, remember with some hard work it will get better. She is just a baby and does not know what you expect from her so it is up to you to teach her these things in a kind and gentle way.
And as stated above she will need to be taken out a few times at night so set your alarm!
