A theory here - you can test out whether it’s true for you and your family….
What quality of attention and company does she get from you? I’d consider whether she’s seeking/craving what she’s never getting.
Just thinking along these lines because you use words like….
’attention seeking’
a value judgement that needing attention is wrong. It’s normal to need attention, and some need more than others. The fact that you find her level of need too much is your thing, not hers. Try using language centred around yourself (even in your mind) like ‘I feel exhausted’ instead of ‘she is…’. This will play through in how you are with her. It’s like if you were hungry and you didn’t eat, so when you were with her your mind was constantly thinking about how to get food. Your mind isn’t going to be present with her and noticing her feelings and needs. If you satisfy your need first, you can then meet her where she is and the time you spend together might feel more satiating to her.
‘I must admit I find it utterly exhausting to deal with it alongside everything else we have to do as parents.’
Did you choose to be a parent? If you’re meeting her with the energy that you have to do it (a duty, a chore) rather than ‘I want to do it and have times when I need to focus on myself too,’ she will pick up on that and internalise that as ‘I’m a chore, I need too much’. So there could be a dysregulation in her - ‘I need, but it’s wrong to need, and I don’t know if Mum/Dad are going to be there for me’. It’s a push/pull in energy that’s difficult for a child to articulate, and it can manifest as hyperactive behaviour. It becomes an exhausting cycle for you both. Can you find some compassion for both you and her? It’s understandable that you feel exhausted and overwhelmed. It’s understandable that she needs loving attention.
ADHD might be a factor, but it’s also possible that labelling compounds the situation - she grows up feeling that she’s the one with the label/problem, rather than the adults around her being strong enough in themselves to make sure they get their needs met. And then that’s a cycle that can perpetuate itself - if she grows up seeing that adults drain themselves and don’t get the rest they need, she could then feel that’s how she needs to be within relationships when she grows up, or it could go the other way and she grows up continuing to assume she can take up all the space. There is a theory that ADHD is at least partly caused by relational trauma, so it could be that addressing some points of disconnect between you might help.
I would focus a lot more on what you feel and need, rather than what your daughter is and isn’t. What do you need to be able to feel rested, calm within yourself and get enough rest regularly? If you solve that, you might be much more able to meet her in a way that satisfies her need for your presence and loving attention.
Also, where is her dad in all of this? You don’t have to meet all her needs by yourself (you can’t - none of us can meet all of another’s needs). Does she have any other adults around like grandparents too?
Theres more I could say about getting things wrong in homework and the feelings of rejection/disconnection but need to leave it there for now, tag me if you want more.