I truly see the mental health industry as promoting "just giving up and accepting that your happiness is in making your brain accept your circumstances". That's what all the work in mental health has landed at as their best way: 'Just convince yourself to not think things suck and redefine success and happiness as whatever your circumstances are.". If you won't do that then the problem isn't with mental health treatment, it's with you not following the recommendation to just be happy regardless of things sucking.
So no, I don't think circumstances get better. Society says that accountability and self reliance and building your own future are the keys to success; if you're not successful you failed at one of those things.
Society even builds around this the idea that taking your own life is a failure. I truly feel in a twisted bit of logic that mental health and society together prefer people to be in an abyss of despair without suicide so that the worlds of mental health and society can't feel like there is a problem. Having many people choose with regularity to simply catch the bus would point out that there is a non trivial number of people for whom current standards of success and happiness and mental health treatment in general do not support. It can't be that cognitive reframing doesn't work, it can't be that people can't simply choose to pull up their boot straps. No, obviously glaringly obvious high profile suicides such as Kate Spade, Robin Williams, Anthony Bourdain and others can't signal a deeper flaw that some class of people need something beyond simply "looking at life in a different way!".
For some of the world it doesn't matter! Things can't get better no matter what you do or how you reframe it. You're stuck with the weight of miserable or you go until you can't take it anymore. Those are the only two choices when you are in this level of pain and sometimes it just won't end.
