Should I wean her off?

So my daughter will be 11 months, this month.

My milk supply it's extremely poor. I leave the breasts for 8-9h and they have barely 30-40ml of milk. From both of them. I don't know if it makes sense to continue this torturing.

My daughter has being refusing every possible bottle, sippy cup, straw, almost every formula, you name it. And has slow weight gain + she's on low percentile.

The only thing how we'd get her to drink fluids is with spoon and lots lots of distraction. Literally drop after drop so she won't dehydrate. The thing is, it's too little. She poops sometimes every 3-4th day, and her diapers lately are not full.

I've contacted a LC, watched every YouTube video, read forums...always the same basic advices which I've tried them long time ago, multiple times. I tried everything to make her take the bottle.

What would you do in this case?

Thank you.