Hi
You've got a great history of nursing. You need a star or something!
As you're on this site for #3, are you using EASY during the day? That will really help you break the association between feeding and sleep.
If you are feeding 5+ times a night it sounds as though your dd is using you to transition between sleep cycles and is not able to independently settle to sleep. A couple of feeds is very common but you're doing more than suggests hunger is the problem.
You could have a look at the props board.
Or this sticky on gentle removal. The first step is to gently break her off before she falls completely asleep and then gradually stop her feeding when she is more awake.
https://babywhispererforums.com/index.php?topic=52857.0The sticky mentions the work of Elizabeth Pantley. Her method fits well with what Tracy talks about in the BW for Toddlers book when she mentions night weaning. She talks of gentle removal first and then moving to using pick up/ put down but expecting it to take a while. The toddler book is aimed at 8 months + babies.
There are plenty of people who night wean and are able to continue a nursing relationship but you may find an intermediate step is one or two night feeds after she has learnt to transition between sleep cycles without you but is still hungry.