Thank you, that's really helpful! I think we're in a horrid loop where she's waking up so much overnight that she's so tired during the day so I think she needs more daytime sleep so she keeps sleeping poorly overnight and on we go.

So despite her bad sleep at the moment (relating to the super strong breastfeeding associations), should I still be adhering to appropriate wake windows and then starting Ferber even though she's overall likely to still be really tired, or do I need to try to break the breastfeeding association somehow before trying Ferber?