Do I need to wean nursing to stop multiple wake ups?

My 17 month old is still waking up throughout the night so often that it’s effecting my mental health and my mood is effecting my husband. My baby is also really tired most mornings until after her nap so I think weaning her off breastfeeding could help with fewer wakeups. The problem is we also cosleep because she wakes up less often when I sleep with her. So I’m not sure how to start. Last night we nursed to sleep as usual and the next two wakeups I didn’t offer the boob she cried but shortly went back to sleep. By 3am I was just too tired so we nursed. Same thing at 6am. How do I handle this? Last night I kept going back to my own bed and she definitely had more wakeups than normal. I’m even more tired now of course and concerned how this is going to effect me mentally