How did you get through a late 30s/early 40s crisis?

Hi Women over 40! I will join you soon (I am 39).

I'm a bit freaked out and hoping for some perspective from women who've been there.

After wilderness years in my 20s, I finally got on track in my 30s, building a life well-suited to me. I married a delightful partner, built some financial stability, moved into a decent apartment, found an industry I really enjoy working in, and have just started my first job with any real responsibility. The only thing is that children have been always my biggest dream my whole life, but I'm infertile. After emotionally grueling years of fertility treatments, I'm facing some choices that scare me because none of them are straightforward (egg donor? foster children? childfree?). I think about it all the time. It's making it more and more difficult to enjoy the amazing things that I have in my life which are so much better than I ever imagined. This issue is just overshadowing everything else like a juggernaut.

I'm already active on the infertilitysucks subreddit, but I would love to hear from women who went into shock at this stage of life (for any reason, career, money, love life, etc) and came out the other side.

Thank you! I look up to you guys <3