Dealing with a 10yo messy, unhygienic child

Hi guys, I just want to start by saying that my daughter is a lovely girl and has some excellent qualities but her lack of self care, messiness and laziness is becoming a real pain. I feel like I've tried everything but it's gotten to the point where she acts like she doesn't notice her mess and is comfortable living how she does. She's starting to not put dirty clothes in the wash basket and her room stinks at times. I'm trying to stay calm but have lost my temper on a few occasions. The thing is she is going trough puberty so I'm trying to get her to understand that its important to stay clean and keep your clothes clean, she's also having periods and she's not keeping herself clean during these times. It's like I have to shadow behind her all the time and tell her to tidy up and have a bath, I get frustrated having to repeat myself over and over. So yes on top of the uncleanness she herself often lacks in personal hygiene, she forgets to put deodorant on and smells some days and I don't think she washes properly when she baths aswell. It's embarrassing because I don't want people to smell her or see how she keeps her room. We have a few good days where she does well and she just slacks off again. I know she is still very young, but she is maturing physically faster than her peers, she's looks like she's 13/14 rather than 10, because of this she doesn't want me helping her to bath anymore which I do get she is far too old for that. She also wants to do her own hair which is great but it looks rough a lot of the time, I try not to make a big deal of that. Please what can I do to get her to take better care of herself and her environment. I've tried organising her things to make it easier, it doesn't work, I've tried talking with her it hasn't worked and I've gotten angry again doesn't work... Have I missed somthing? Bdw does anyone think it's a good idea if I just chuck a bunch of her stuff away? I feel like it will help with the clutter and she will have a clearer head at the end of it. Thanks in advance for any advice.

Also I'm looking for a solution/plan to help her to think more for herself and for her to take better care of herself, so anyone who suggests just keep on top of her and tell her to do x and y is not helping as that's where were at already.