For eg: if I have a bad day and not my best she won’t do her lessons etc because ‘mummy is not happy’
How are you conveying your 'not happiness' in these situations? Is it impacting her?
My daughter is much younger, but she's very concerned with whether I'm happy or not all the time. She gets very upset if she perceives me as being 'unhappy'. It makes me worry that I've somehow conveyed to her that she's expected to keep me happy somehow, or that me being happy/ unhappy is a big deal that has some kind of emotional impact on her. That's on me to fix really - I'm working hard to keep my responses in check, and to watch my language for example I've noticed I had been saying a lot of 'I won't be happy if you do x/y/z' - so I'm making a conscious effort to stop that. Adult emotions are not/ should not be children's problems. We're doing lots of talk about sometimes we feel sad, and sometimes we feel cross - she can be cross with me and sometimes I'm cross with her, but whatever happens I always love her.
Maybe none of that is relevant but just worth asking yourself where you think the above is coming from?
This was started by her dad- he over praised her from day 1 claiming this will build her confidence (he has confidence issues) and now I feel she sees as as inadequate
I don't think her dad is entirely wrong. Praising kids isn't inherently a bad thing. It also across like you yourself don't think particularly highly of her, or see lots of faults in her. Do you find yourself being more critical?
We noticed the way my SIL was with my nephews growing up - to the point I had several conversations with other family members about it. She was so full of praise for them all the time, and do you know what? They've turned our two of the loveliest, most accomplished, most respectful and generally fantastic young men you could wish to meet. It's made me want to emulate her approach with my own DD. (It was also paired with lots and lots of sport, which I think also had a very positive impact).
What I do try to do is praise effort/ resilience/ thoughtfulness/ behaviours etc over just being 'clever' or 'pretty' or 'brilliant at X'. Maybe you and your husband could both focus on being positive and giving praise but directing it towards the times when she shows the behaviours you want to see - you worked so hard at that/ you carried on even though it was tricky/ you didn't let XYZ distract you/ you were really thoughtful to do that for mummy etc etc.
To me she reads like a fairly typical ten year old. Maybe a tiny bit spoiled like they all can be. But it could also be some anxiety or that she feels the need to be perfect/ get everything right and it paralyses her a bit - especially if she feels like you're going to be 'not happy' or judge her for it, and she has the threat of moving to a different schooling system where she might not be able to keep up hanging over her.