My son is 2 weeks old and does the exact same thing I even feed him while he sleeps everyone has been telling me to just go with his schedule so I'd say sleep with her that way when she is up you will have the energy to be up too, we have to tough it out until we can regulate a schedule when they are about 2 months or so.
It gets better mama! Keep it light with windows open and do what you normally do as far as noise so baby doesn't sleep all day. Talk to your pediatrician but mine told me to let baby sleep at night without waking but wake to feed during the day. It turns around. It does take a little bit but after doing this for a week or two baby should catch on. Hang in there. It is sooooo hard to sleep when the baby sleeps but try to at least lay down and rest. You are not a bad mama I'd you use a bouncy fair or a swing to calm the baby at night. At night keep it dark and quiet. Please do take breaks at night and have someone else help you burp baby after feeding so you can get a nap. Even ten minutes helps but you will feel better when you get a little sleep.