Hmm on second thoughts OP your DD’s attitude sounds bit like the person that came to see me about the “domestic abuse” 😬 I think the problem is that it’s become so normalised in that generation to live at home with your parents in your twenties that some of them forget that you’re actually obliged to allow your adult children to live at home with you! And certainly not rent free if that’s what she expects (and I’d give her a heads up now about it!)
It’s great to feel that you have a safety net for sure. I know that if things ever completely fell apart for me that as long as my parents are alive I have a room in heir house if I want it. In fact they have said that to me. And I really appreciate it, I am very fortunate in that respect. But I think that’s the difference, the fact that I understand they would be doing me a huge favour in that case which I’d be so thankful for and crucially don’t EXPECT of them, and maybe also that because I’m not of this younger generation that I’m unlikely to ever actually take them up on it unless things were really dire. Maybe they’d change their minds if I actually did 😂 It’s ok to reassure her that she always has a place in your home if you need it while also making sure there are some boundaries in place if she does move home, and I honestly would not allow her to live with you without paying a fair share of rent and household running costs unless there is a very good reason why not on a temporary basis (like serious depression making her unable to work etc).
I will say that I have unfortunately struggled with mental health problems myself and also lots of serious adverse life events. My parents have been my absolute rocks throughout it and I appreciate it so much. But I know it has taken a toll on them. And they did once say to me that they felt we shouldn’t speak on the phone so much any more because I was just going round in circles all the time and not really managing to solve my problems anyway despite talking it all through with them. And that I always seemed to be sad and upset no matter what they said, and it upset them to hear me like that, as they couldn’t seem to help me so the phone calls were pointless and draining them. And that they felt I was somehow expecting them to solve the problems I had which were nothing to do with them. Sounds a bit uncomfortably close to what you’re feeling OP 😬 Honestly I was a bit shocked that they said that, partly because because from my perspective the phone calls to my parents were all that was keeping me going at that point. And I found it really helpful both emotionally and practically to talk things through with them. But certainly wasn’t at all expecting them to solve my problems for me. Most of them weren’t really all that solveable at all to be honest. Just wanting a supportive chat from people that I know really love me at a difficult time. We had a long talk about it and I think it helped them to know that they were really helping me even though they didn’t feel like they were. And I told them it wasn’t fair to put pressure on me to be happy when life was shit and my mental health was poor, it wasn’t my fault that I was still depressed, I was trying everything I could to address it but it wasn’t working. So they shouldn’t see it as a personal failing that I was still depressed at the end of a phone call, after all if a phone call could solve depression instantly nobody would be depressed. And I think it made me more aware that I needed to not just call my parents and moan constantly. And also that I needed to be more aware that they were struggling with the situation too plus their own problems, and would sometimes have to go and attend to other things rather than talking to me, and it wasn’t that they didn’t care but they have their own lives and their own needs too. I think we have a better balance these days.
So anyway my point is, that maybe you need to have a conversation about boundaries with her if you find the conversations draining and pointless but she wants to talk to you more not less. And even though in your eyes the conversations may be circular you might find that it is helping her to talk things through. But it’s totally reasonable to say but you can’t call me late at night or if I am having dinnner I’ll have to call you back or I can only spare 10 minutes for a quick chat etc. Or say you’re happy to chat about anything except her work as you find it upsetting to see her so fed up wothbwork all the time. Or if it’s an issue to you to talk every day then say let’s limit it to x times a week or whatever. She might surprise you in a good way with her response! Although I can’t conceiev elf a world where I would call my parents once a fortnight only. I guess maybe when I was at uni and I was very happy and settled
With lots of friends and good mental health it was like that. So maybe it can be again! But I think I’d still want to talk to them more than that. And my son is only 14 but I can’t imagine not wanting to speak to him more than once a fortnight!