Shes probably a little frightened of the outside world and maybe over stimulated. I would try to stop worrying about how much she should be sleeping and just try and enjoy her company. When you stress like that the babies pick it up as if it was their own feeling and then they are stressed too. So just relax, forget about house work etc... just enjoy your baby. Don't worry about self settling yet and during the night keep things quiet and dark so she learns the difference between day and night.