Oh mama, I feel you so much, a few of us went through this exact thing around the 8-month mark and it is genuinely exhausting! What seemed to help was breaking the feed-to-sleep association by unlatching baby just before she fully falls asleep, so she's drowsy but still slightly awake, then letting her finish drifting off without the boob, it takes a few nights of protest but babies do catch on. Some mums in my circle swear by the "side-lying feed then gentle pull-away" method where you slowly reduce how long you let them nurse each night, so it's more gradual than going cold turkey. One of my mum friends tried doing a proper wind-down routine first, bath, dim lights, short feed, then putting baby down awake, and she said the key was being really consistent for at least a week even when baby cries, because the first two or three nights are the hardest but it usually improves after that. Hang in there, it really does get better!