Congrats on your new puppy!!! You are going to love her to death...Here is the only advice that I can give you
1. Nurtical---2x's per day
2. Keep her warm---If it's cold where you live, forget taking her outside
3. Find a food that is good for her AND that she likes...there is no point in giving her food that she doesn't like cuz she will not eat it..
4. And because she is so young she is going to sleep alot...just make sure when you have her out she playes alot..
I had to give Izzy real baby food..Stage 2 ground chicken with in with corsely chopped dry food... She is 15 weeks now and she still gets baby food once a day..
You will have to find what works with you and your furbaby

These are just something that have helped me...It was like bring a newborn baby home for the first time and I was wreck..lol... You will be a great mom!!!