DD3 needs a cold bucket of reality. Because her adult life isn’t what she herself aspires to & that will only compound as the years fly by.
Is she going to be watching TV with her parents at 40 still telling people she’s too good for a “shit” uni & it’s all her mother’s fault. No one cares when you’re 40, not one even cares where you went to uni at that stage.
Op you remind me of someone who knows they need to lose weight & they talk about it a lot & they might for a short walk but that’s it. You need to do the equivalent of marathon training with your daughter.
And your husband needs to be a big part of it even if he has to be dragged to the table. It’s - OUR house & rules. You are a unit together.
Not Mum talking about trying, while keeping secrets with DD3 from dad.
Chnage the WiFi password today. Her sisters get the new one. If you have your change it everyday to give her two hours to research do that.
And cut pocket money, no special shampoos.
She gets food & board. And with that she gets chores. And if they’re not done she gets no wi fi.
You have to push her out of the nest cause she isn’t going by herself.
Reward progress. Signing up for a course of whatever - I’m proud of you, & buy her a few treats that.
Back to basics - effort is rewarded.
And she should be told firmly that you will not be emotionally blackmailed out of doing your parenting duties by her.