Alessia,
I don't know of a way to post the spreadsheet. You could email it to me, though.
I am going to ask some EASY/sleep mods to check in, since your main concern is your overall EASY routine and night feeds.
I think that striving for a consistent start time to the day (difficult, I know) and striving to keep A times as consistent as possible while still watching cues will be key to getting your EASY back on track. At six months, as long as she is sleeping decently at night, she can probably handle A times of at least 2 hours. Of course, you know her best, but even with bad moods and fussiness I would strive as much as possible to keep her A times consistent within 1/2 hour. Not saying that all A times need to be the same throughout the day, some babies need shorter A times first off and can do longer ones later (although we seem to be opposite of that
), but consistent between days--so her a.m. A time might always be 1.75 - 2 hours, her midday 2 - 2.5 hours, etc. Of course you watch her and not just the clock, but try to stay consistent, not putting her down *too early* OR too late. Good naps depend on appropriate A times, so when you figure those out the routine will get a whole lot easier.
As BW moms we're always on a keen watchout for overtiredness, but if you interpret everyday fussiness as a sleep cue and put her down too early, she won't be tired enough to take a long nap and get up too soon, leading to more tiredness later in the day, and the cycle continues.
I think (as you probably know) that the night feeds are an issue. If she's not eating much when she wakes in the a.m., she may be hungry before naptime is up, causing or at least contributing to the short naps. I will see what other mods say about this...everyone handles it differently. Most would agree that nights feeding every 3 hours at 6 months is excessive. *Of course, this and all of the following advice is assuming that she's waking from habit and not hunger*. Is she on solids?
Early on dd started sleeping bedtime to midnight without feeds, so we generally don't feed until 1 a.m. or so. No df, it didn't work for us either. If she wakes before then--she often did and does--we resettled without feeding. We've been very, very consistent with that, and now when she wakes before then she doesn't expect to be fed and resettles herself. I think that's key too--establishing a time of night when she doesn't expect to be fed even if she does wake, since you may still have wakings and your goal is to get her to go back to sleep peacefully and without you. Our dd is a very light sleeper and wakes a lot (now thankfully mostly resettles independently) and can be pretty demanding, so I knew early on that if I fed at every waking we would have a nightmare on our hands.
For us it took time and a LOT of work and robotic consistency resettling at 10 p.m.,. 11 p.m., etc. without feeding. Many nights I wanted to give in a just feed, but when I did, it made NO difference in feeding patterns for the rest of the night. She still woke and wanted to eat in a couple of hours, so I just said enough. Now, some nights she eats at one a.m., some nights not till 2 or 3, but most nights that's her only feed and she sleeps till 6:30 or so.
If you choose a time during the night when you will strive not to feed, I suggest the hours at the front end of the night, so that when she wakes in the wee hours you can feed, and hopefully she'll settle into feeding once per night in the early a.m.
OK, I gave you lots of info. Hopefully some other mods will come in and offer insight.