What am I doing wrong ???

Au

So I don’t know. I think my almost 3 week daughter is going through a growth spurt.

She will be hungry during the day every 1.5-2 hours. I’ll make her bottle of 3oz bc that’s the max she will take. But then she will only want 1-2oz(2oz if I’m lucky ). I feel like I’m wasting so much formula. But she needs to eat but she’s eating so little ?

At night she will sleep 3/4 hours before waking up to be fed. And she will finally start sleeping st around 7.

HELP