Am surprised at Chollens answer and i strongly disagree.It is a big issue and you are all set on ruining her life.
1. Dogs are not supposed to be brought up that ways, you have made a mistake by getting her.
2.You will have to either make serious changes or think of putting her up for adoption before you cause permanent damage and then no one will even adopt her.
3.What is her walk and playtime schedule..and does she even have one?
4.Have you found the time to socialise her..which is getting her used to people, sounds, sights.If you don't do it now you will have a unmanageable dog on your hands.And she is already showing the signs.Remember that a grown dog will be exactly how it is when a puppy just weigh more, stronger and sharper teeths.So she will grow up to be hyper active, uncomfy and maybe even aggressive when she grows up if you dont correct things now.
5.Dogs are social animals, they like to be part of a pack..or families, leaving her alone for 8 hours is not the way to bring up a puppy.Is it only 8 hours, cause nowadays 8 -9 hours work + travel time+early morning rush to get to work+ come home and then too tired or stressed to take her for walks or play...
6.Food and water is not the only requirement of a 2 month old puppy.