If we're talking magical impossible historical rewrite-type things?
1) not having been exposed to the damaging behaviours of my parents during my youth, which somehow seem to fuck up my brain more as time goes on
2) not losing my best friend to suicide
3) not developing a medical condition which threatens to return any given day and makes the basic, unavoidable act of defecation unbelievably terror-inducing
4) not being completely unexpectedly abandoned by a partner with whom I thought I was going to be for the foreseeable future
5) not being thrust into a pandemic that was by many accounts either avoidable, or could have been managed far, far better
If we're talking change of current life circumstances, likely or not? Might not be enough now, but...
1) living in a place that has the best of both the human and natural worlds; some kind of low density, hyper-green city where there is access to the quality of life that urban living brings (proximity to arts, healthcare, etc.), but actually a sense of community as well as connection to the physical land
1b) a fucking supportive community, constellation of friends; I am blisteringly isolated and feel like some people might be sad if I died but that it wouldn't matter functionally (weird)
1c) a partner, maybe? In the last few months I feel like I might not be able to function in a relationship at this point but who the hell knows
2) doing something that makes me feel like my existence and suffering have some purpose; teaching, mentoring, creating art for people and not profit, etc.
3) some kind of magic solution to my physical and mental health problems? I dunno I'm sure at some point humans will figure out most of these kinds of things so long as we don't render our own fucking planet uninhabitable or sterilize ourselves
Of course that's just all for tricking my brain into producing enough happy chemicals to make me forget that we are a savage species capable of immense evil which apparently never learns from its mistakes, and that existence itself seems to have cruelly been fashioned with misery not merely as an essential component, but the one to which everything defaults unless we put up a constant, full scale effort to avoid. Sigh.
That was a productive exercise. Thanks for starting this thread and giving me the opportunity to lay all that out.