Anyone else struggling?

How the hell do I get 2000 calories a day?! I'm doing good to get 1000 and I can tell it's affecting my supply. My diet consist of mainly granola bars and protein drinks, neither of which have but 200 calories. I don't have the time or patience to count out calories like this, with a newborn and a puppy and a two year old. How are you ladies keeping up? I could use some tips, I wasn't successful even this long with my son. I'm loving the bond it's creating with my daughter though, plus I hate formula.