I am wondering what made you switch from the breast to a bottle. Have you gone back to work? The most important thing to consider is that your baby will really thrive on breastmilk up to at least 1 year of age. Right now, I would return to feeding her from the breast. She needs the reassurance and comfort of her mothers arms more than the independence you are trying to gain with bottle feeding.
Have you ever tasted your breast milk compared to formula? Once you sample both, you should have your answer, breastmilk is sweet and delicious; formula is just YUCK!
K. Voigtsberger
Certified Breast Doula (DONA)
Certified Bradley Method® Educator
Breastfeeding Trainer