Breastfeeding moms

My 11 month old is breastfed still and is starting to want nothing to do with it during the day. She’d be perfectly happy only nursing morning and night. I know this would only give her around 10 oz/day (recently my boobs get up to around 5 oz total even if there’s a long time between sessions I usually only end up with 5 or 6 when I pump 3 hours later or 8 hours later). I feel like 10 oz a day isn’t enough but she wants nothing to do with milk in sippies or bottles either.

She loves drinking water out of any sippy but as soon as she realizes its breastmilk she’s over it. I’m so worried when when we stop breastfeeding, which will be soon, that she won’t drink any whole milk either. She just likes her water

Anyone else dealing with lack of interest in nursing or even bottles? Stresses me out since shes not even 17 lb.