Feeling helpless/hopeless

I don't know what to do.....my baby girl acts like she can't get any milk from me and then doesn't want to drink from the bottle but acts like shes hungry and won't sleep.....it's 4am and I've literally been up all night....sittin here ballin my eyes out because I don't know what to do....I can't keep her awake during the day because she's so hard to wake up and she's up almost the whole night.....she wants more and more food but I can't seem to give her enough and it breaks my heart to think I can't do this for her...then when I give her a bottle she doesn't want that either....when I put her to my breast all she does for the first couple min is push away from me....I don't know what to do