I have a 5,5 month old and Healthy Sleep Habits Happy Child has been the best book ever with sound expert advice IMO. My baby is still exclusively breast fed (has a bottle a couple of times with daddy on the weekends with expressed milk.) We transitioned him from a co-sleeper alongside our bed to his own crib/nursery at 5 weeks, purely because we found he slept better and longer on his own than with us. I thought I was going to be AP all the way, but realized early on it was not going to be sustainable or sane for me :). (The co-sleeping part, and wearing your baby all day part.)
Bedtime is usually between 6pm and 7pm, he'll typically wake for 1-2 (2 max) feedings per night and then wakes up between 7am & 8am. HSHHC says not to let him go past 7am, but sometimes I enjoy that little lie-in so I go with it :). I usually have him back for a nap within 1,5 hours, never more than 2. If your LO is waking at 6am, she probably needs to go down pretty quickly because she needs an extension of her night sleep. On the night feedings note, I will speak to my ped about weaning him because I know he definitely can go 8-9 hours without food, he's done it a lot in the past, and as I say, he's breast-fed. I don't agree with moms who make blanket statements about these children needing to eat more often. My son is 75-90% for weight (97% for height), so he's always grown quite well without needing to be fed every 2 hours at night.
For the rest of the day I don't have specific times for my boy to nap, because it depends on how long he napped for. Anything less than 45 minutes I don't consider a restorative sleep so I'll watch him closely and re-nap him if he rubs his eyes, even if he's only been awake half an hour. But generally I try to keep within the 2 hours of wakefulness recommendation. He often needs a 3rd nap, but if he goes down at 4pm and is still sleeping at 6pm I'll wake him (switch on lights, be a little noisier, so he rouses himself) so that I can play with him, feed him, do his bedtime routine, and have him down again by 7:30 at the latest. We were just recovering from jetlag so I think that is why he was taking longer 3rd naps, and I didn't want them to be part of his night sleep and up at 4am for the day!
How do I put him down? When I notice his drowsy signals, OR we're closing in on that 2 hours of wakefulness window (whichever comes sooner) I feed him if necessary, speak quietly and gently, make sure he's got a clean dry diaper, sing him a little song, swaddle him (I want to transition him out of that soon but he has a strong sleep association with it for now), pop him in his crib, sometimes put the mobile on for a short wind-up, and walk out and close the door. Sometimes he'll giggle at the mobile, then silence. Sometimes he'll fuss a little bit. Sometimes he'll fuss more loudly. I leave him in there and eventually he'll drop off. I know he's fine, and 90% of the time he self soothes with no problem. If he does cry quite a bit and for a long time (say 20 minutes) I'll go in and rock him a bit, and try popping him down again. As a LAST resort I'll nurse him to make him sleepy. Even at night feedings I'll change the diaper last so that he will self-soothe back to sleep.
I hope that all helps. I will also say that I recognize babies have different temperaments and some are more demanding than others, so you have to figure out what works for you. My son felt very high maintenance in the beginning weeks, but he's pretty peaceful now. IMO this is partly temperament and partly because since finding the HSHHC book I have been super vigilant about periods of wakefulness, quiet & motionless sleep, and trying to get him on track to self-soothe. He is very amiable and alert when he's awake, and hardly ever cries. I wish you all the best with your little girl.
P.S. If you are in the Chicago area, the author of the book has his offices in the city, I believe.