Tips on making toddler EAT

Hey ladies!!

My first didn’t have this issue so I’m kinda at a loss. She’s almost 18 months old, and up until recently she has been waking SCREAMING to nurse every hour all night long. She started out nursing every 15-45 min for the first 6 months and then graduated to an hour but she never got more hours between feeds/wakings after that. She eats as much as her 5 year old brother so I didn’t think that could be the issue. BUT. Instead of following her cues I semi-persuasively convinced her to double food and water intake and she started going 3-5 hour stretches. It was HEAVEN to only be up 3 times lol. Now, trying to actually get enough food in her tummy that she will sleep longer stretches is SO HARD and I’m becoming stressed and drained from the struggle. She just doesn’t want more. But then she will nurse all night to make up for it. I’ve since cut out any daytime nursing, offering food and water instead. But the nighttime I’m just not sure. I don’t want to wean her until 2 years minimum, and she doesn’t want to either. But I also cannot survive on no sleep anymore. Any tips?!!