Your daughter is one day younger than my twins! My boy will sleep for 6 hours and his sister is not quite there yet. Of course the are really hungry when they wake up. Thankfully they eat and fall right back asleep. My twins are kids #5 and #6 for our family.
Remember while all babies are different, they have some similarities and general rules that often help out. This is when they start to figure out their schedule and as mom, you get to help them figure it out. They do not need to eat every three hours (as long as they are over one month old and 8 lbs., and in general healthy). My pediatrician told me that at two months the liver starts regulating that and will wake the baby up when they get hungry. At three months is when they start to sleep longer stretches, usually 6+ hours.
Our bodies use sunlight to help regulate our sleep cycle, so when they get up in the morning, open the blinds and let the sun in. When it is time for a nap, do something soothing for the baby (swaddling with blanket, rocking, singing, etc - unfortunately every child is different, but you will find what works for your child by trying different things out) and I try to darken the room.
Something I was told by my aunt with my first child, don't keep the house quiet when trying to get children to sleep - play the radio, vacuum, whatever so that they don't need silence to sleep. My twin's crib is literally next to the piano and the kids practice the piano every morning and the babies sleep through it (with 4 siblings, it is probably a good thing).