Breastfeeding times and oz

Baby is a month old. Breastfeeding exclusively and one bottle at night sometime! How many hours should I wait to feed bc I'm still waking her up around every two or when she cries sometimes, since she has night and day mixed up and is sleeping all day mostly and grumpy awake at night? How much should she be eating also? It's hard to tell when I breastfeed, but I have some stored up from pumping and I don't want to waste on dethawing too much! Thanks.