@pluralistic I relate to this so much, I'm terrible at haggling and find it exhausting.
I have some old collectables that I was talking about to a friend and he asked why I haven't sold them since I don't need them nor really care to have them anymore. The answer is mostly that it's just such a hassle to try to price things, to go through all that effort just to get a bit of money from someone. If I saw someone who wanted one of these I would just give it to them, they'd be happier and I would likely not even miss it. I feel bad *charging* someone for something I don't care about all that much.
And on a broader scale that's part of why job hunting is so exhausting, you have to sell yourself. Write down an ad for what makes you worth paying for and negotiate to try to find someone who will buy. You can't just "go work" you have to find a job and it has to pay enough for you to survive and if you negotiate badly or take the wrong deal it might mean you don't make that next rent payment.