I think you are doing well with your midlife crisis. At least you are not buying ridiculously expensive sports cars and chasing young girls around! 😆 On a serious note: from experience, I know that quality sleep becomes more important when growing older. As a chronic short (too short) sleeper for most of my life, starting around age 15, since my late 40s I shifted my sleep to add more hours to the sleep cycle, giving my body (and mind) the rest it really needs. That said, am still having nights with too little sleep, but that is ok, I know how to (mentally) deal with that. Regarding children. Well, if you like them, who knows, maybe you get them? If not by you, perhaps through a future girlfriend who is a mother already? I do hope you can get to a better situation with your back pain.