Oh no

I'm so sorry! Take your time before getting a new baby, you'll know when you're ready. In the meantime, the breeder should be doing something about all the vet bills you incurred trying to save your little one. She sold you a sick puppy! In all honesty, I would NOT get another puppy from this breeder and would be looking for one that it reputable. Do lots of reading here, there are great tips for finding a GOOD breeder.
Sending you and your family hugs!