It's very common for new puppy owners to feel overwhelmed and worried about everything.
You've taken on a tiny baby animal. Only natural to feel the weight of responsibility.
Is she your first puppy?
Just remember that most puppies survive and grow up to be dogs so the odds on everything being all right are very high.
Never be afraid to call your vet if you're worried about anything.
Don't know what I did to feel calm about my dog when she was a puppy, she's 10 years old now so it was a while ago.
Spend time doing things with her.
Get started on training. Start lead training her in the house and garden.
Even if she hasn't had her jabs yet you can still take her out and carry her places so she can see the world and get used to noises and people; very important for socialisation that she experiences a lot of different situations and sights early on.
People will want to stroke her and say hello, no one can resist a puppy.
All these thing will help you relax with her, get to know her and bond with her.
Have you booked her into training classes, for when she's had her jabs.