She's playing you. She doesn't want to go to bed. You want her in bed. She tries different strategies to get her way. She figures out that if she asks for water mommy will interact with her and she'll get to stay up a little longer. She figures out that if she says she has something to say that mommy will interact with her and she'll get to stay up a little longer. She figures out that if she says she's sad or scared that she'll get a long talk and hugs, so bedtime will be further delayed. She figures out that if she says she can't sleep that mommy will interact with her more and they will get to play games like "practice breathing". You're too scared of being a bad mom, so you let her draw you into her bedtime avoidance games even though you know what's going on. You know she'll be tired and not do as well in school the next day, but you're still letting her decide on when you both go to bed.

You need to stop playing. She can have a cup of water that's 1/4 full by her bed. After that's gone then she can wait until morning. She can get up to pee once. You will not be answering any questions, making her a bed on the floor, putting lotion on her, or discussing her feelings. Anything along those lines needs to be completed before bedtime or it can wait until the morning. You ignore her when she tries to yell out questions. You will have discussed the new bedtime rules before bed, so she'll know what's up. You aren't being mean, you're setting limits because you are a good mom. She will probably resist losing that much power. She might cry or say she's scared, or that you're mean and hurting her feelings. She might get out of bed a dozen times. It might be a few nights of Hell. It'll get better. Soon she'll be going to sleep without a fight. You never have to be mean, just firm.

I had to do this same thing with one of the girls that I was a nanny for (she was 6). She had a single dad with primary custody who was afraid to hurt her feelings, so she would keep him awake until midnight doing what your daughter does, and then he would just let her sleep in his bed. 3 nights of that strategy and she was sleeping in her own bed and falling asleep after 20 minutes in her room. No negative side effects, and her behavior improved because she was well rested.