Hi C.! I would like to recommend the book BabyWise to you, it saved mine and my husband's sanity when our son was an infant! It teaches you how to put your child on a schedule for eating, playing, and sleeping. Some of the information is harsh but you can use what you want of it. The big thing is allowing your child to self soothe. Now our son is almost 2 (on May 5th) and he is the best sleeper. He takes 1 nap a day and goes to bed at 8 p.m. and sleeps until about 6:30 a.m. He was sleeping through the night at about 8 weeks! Give it a shot, I swear it works!
Regarding getting your daughter to take a bottle, have someone else give it to her. Pump enough for one feeding and have your spouse, parent, friend, etc. give it to her during her normal feeding time. Make sure that you are not in the room. You may use this spare time to take a shower or run to the grocery store!
Good luck and trust me, everything will work out!
T.