Babies are all different in temperament and in physical needs. Some are easy, some have higher needs. Some are not bothered by noise, or even thrive on it, and could snooze through a fire drill. Some need quiet and calm. Some babies take well to schedules, and some are tortured by schedules. If you throw out the idea that your baby "should" be some way or other, and follow the actual needs she expresses, you will have a calmer and happier baby, and you will be calmer and happier.
My daughter was born in '71, when pediatricians warned against feeding any more often than a 4 hour schedule. My daughter could eat only enough at a feeding to hold her for 2.5 hours, for nearly her first year. When I coaxed her to nurse longer or eat a few more bites of baby food, she was uncomfortable and restless until she spit up the excess. So I just went with her 2.5-hour feedings, because that's what kept both of us comfortable and happy. I was only stressed when I thought about what the doc said I "should" do, or how she "should" be.
Likewise with sleep. She never slept more than 3-4 hours at most for her first couple of years (her son took 2.5 years to sleep through the night). I learned to nurse her while I was half-asleep, and then put her in a bassinet set on the floor next to my bed, or just allowed her to sleep beside me. It was sweet and satisfying for both of us.
Also, be aware that cereal before bed can create hunger faster than milk or formula alone. Yes, it's "solid" but all carbohydrate, and is digested very quickly. It can build body fat, but will not quell appetite for as long as the protein and fat in milk.
I wouldn't worry about "normal," because the way it's applied to babies, it really only means "average," and very few babies are average in every respect. Find out what works, and go with that. Along with others below, I strongly recommend The Happiest Baby on the Block – a terrific resource.