Winny - I made the switch from nursing to sleep to nursing after nap time around 6-7 months, as well. It's definitely possible! I think Eloise's suggestion for asking your DH to help is a good one. Also, at 8 months, PU/PD worked well for us, as I thought he wasn't ready for WI/WO. But there was still a good amount of crying. Eventually my LO was going to sleep easily without milk beforehand. I'm not sure how much your LO is eating solids by now, but you could try to do a snack closer to nap time, to fill her belly a bit
Good luck!
For us, we have successfully stopped the 5:30 accidental parenting nursing sessions!! Although DS is still waking up at 5:30
We have been doing WI/WO (DH has been a great help, but tonight is my turn) in the mornings from about 5:30 to 7:30... he will sleep periodically during that time. Crossing my fingers that the WI/WO will start helping and that someday he will sleep from 7:30 to 7:30?!?!!
Other than that, I have been trying to keep our 4 daily BFs to set times and give him about a 30 minute window. If he asks outside that window, I tell him it's not time for milk, and he seems okay with it. No tantrums!!! I have realized that a lot of times when he asks for milk, he is really just wanting attention, and is happy with that. I've also noticed that sometimes he'll stop nursing and ask for food or water... hopefully that is small sign that he might not be totally tramautized by the real weaning!! All this to gear up for cutting out our first BF in 3 weeks...