I wouldn’t focus on her bedtime at first, focus on her wake up time and try to keep it consistent- between 6am and 8am depending on your lifestyle. She should naturally get tired earlier. Then I would work at creating a routine and stick to it. Maybe bath, jammies, story, snuggle—- that also means no staying out late, ideally she should be home before bedtime. My daughter’s bedtime is 8pm, maybe 2 times in the last year we stayed out past that, but she was still asleep, just in the car. <~~~ in those instances I packed her jammies for an easy transition.

Oh wow.

Does she have her own room?

If she does ( my kids shared rooms that’s why I ask) anyway if she does. Tell her night night and establish a bedtime routine. Then put her in her room. And if she comes out just keep putting her back in her room no matter how long it takes. Btw how old is she??