I'm an "elder" millennial.... I'm 40+.
Pretty much everything went to shit right after I got to the workforce. It was somewhat subtle at first, but it's only gotten far worse and far more obvious as time has gone on.
Kids? Nah bro. Have you seen the world? I don't want to live here, why would I subject someone that I care about to a life, living in this hellscape? Like all parents, I'm sure I would love my children if they existed and even though they don't exist, I still love them enough to not subject them to gestures at everything this.
I haven't gotten a meaningful raise since starting work. I was originally hired at basically minimum wage, a bit better than it in my area (ironically, my starting wage in my career is now below what minimum is now), and the only time I went up in salary is when I changed jobs.
With more than half a dozen years of experience (this is a while back) I was fighting for anything over $60k/yr (it gets worse), while housing in my area was skyrocketing above $400k for a modest home....
After the usual expenses of food and rent, I've been robbed blind by being given no choice but to buy things "as a service" and own fucking nothing. I've pushed back against it as much as possible and after years, I paid off my vehicle and absolutely, positively, 100% own this now 13 year-old car. Whoopee....
I've lived through everything from 9/11, to Trump... Twice.... And nothing has ever quantifiably gotten "better" without getting worse in some other way.
Better, faster, more capable computers? You're obligated to run software that spies on you. Better cars with fancy tech that makes them basically drive themselves? Only if you subscribe to activate the seat warmers for a nominal yearly fee.... Phones are more capable, better, faster, more connected and overall significantly improved? These are now devices used by companies to harvest every meaningful ounce of information from you, selling it to the highest bidders (multiple times, I might add), and giving you nothing for your contribution. Congratulations, someone has monetized your existence via an app on your phone.
Everything is worse. You never have time off work anymore. Even if you take vacation, the expectation is that if they call you, you'll answer, then you're working for free. But if you don't answer, then your job is at risk.
Fuck everything. This world sucks. I'm fucking sick of all of this shit and I'm mad as hell about it.
I was diagnosed with ADHD a few years back... Just shortly before I turned 40.
I'm lucky that seems to be the only thing my brain struggles with. After about a year and a half, I found a combination of drugs that works for me, and I've been doing ok, as far as my ability to think, concentrate, or focus at work goes....
I'm in Canada, so we have similar issues with our social support programs. I know this because, while I got off light in my diagnosis, my brother has far more severe ADHD symptoms, and he has other medical complications that make treatments difficult at best. I won't go into his medical issues since that's not my story to tell, but from a high level, most of the problems root in the fact that he was diagnosed with type 1 diabetes in his mid-teens.....
He's actually registered in the disability system and I've helped, or at least tried to help him navigate it and get to a point where he can do anything and get any support at all. Needless to say, I get it. Our system isn't super different from the UK system. Personally I think it's shameful that we give such a hard time to people with diagnosed disabilities, it's not like those disabilities are going to... Idk, stop being a thing? It's kind of a life long problem.
I'm lucky in the fact that if I continue taking the meds, I'm more or less "normal". I have a steady job and I help my brother as I am able.
None of this is to detract, compare or "one-up" your challenges. The purpose to saying all of this is that I get it, I emphasize with your situation. I hope you are doing better and that the UK disability system stops fucking up your coverage so you can get back to living your life.
All the best, from across the ocean.