Hello, all I can say is that I've been there, and it's awful.
Very similar circumstances too: I'm 41 (42 in a few weeks) with a 3 year old and unexplained secondary infertility. We've had 2 unsuccessful IVF rounds with a mix of chemicals/failed fresh transfers and abnormal PGT-A results from frozen embryos.
I'm sorry to say I'm not writing with much personal reassurance: I've not reached a happy end yet and the road we've chosen may not suit you at all... so please don't take my story as advice or recommendation.
Above all I want to tell you that I'm really sorry you're going through this. Your feelings are absolutely valid. And also that's it's good you're sharing this, it's a hard thing to do!
I wouldn't say I had a wobble, it was a full on crisis! At the end of our last cycle I was absolutely crushed by the outcome, in tears everyday, not able to process the disappointment, with myself, my body, the clinic team... I felt completely cut off from the rest of my life, just obsessed with IVF. I showed up for our child but not much else.
What has allowed me to move forward, was paradoxically giving up the terrible hope that was making us chase the IVF dream. From the very beginning our consultants were clear that, having passed 40, only <10% of my eggs have a chance of being genetically normal.
With my amh and follicle count they reckoned 15% chance of success per cycle. And I kept thinking that 15% is not nothing, that other couples get "lucky" all the time, just not acknowledging our predictions for success translated to 85% chance of failure.
It took the 2 hard cycles for me to actually hear the message, let it sink, and accept that it meant we were a lot more likely to fail than succeed, and to properly grieve for it.
After last cycle in June I knew I would need 3 months to get my normal period back, and so decided to take a "leave" from TTC, IVF, all of it, and just explore my feelings about giving it up.
The IVF absolutely consumed my life in the last year, so must say being able to step away from it was a relief. I felt I gained a lot of mindspace back, and came back into my old, pre-IVF self, which was reassuring. I could see that I would really grieve not having another child, but I know I could find myself again. So that really helped me with imagining what my life would be like if we stay a family of 3. And I genuinely surprised myself when I did come up with some positives in that scenario.
After that (and some more crying) we decided we care more for completing our family and having a sibling for our DC... and less for the genetic link. Consequently we decided to go ahead with donor eggs. The DE IVF is planned for next week 🤞 I am feeling hopeful of course, but I'm trying to keep in mind that it's not a golden ticket.
Of course, our DE cycle may still fail, and while this would be an end on this dream, it won't be an end of all dreams.
Sorry for a long message. I hope you'll find a lot of patience and kindness for yourself