I should add - for the purposes of your research!
For me, age has been more or less immaterial to the process or my experience of the process. Other than the fact that I've been very aware from the beginning that most people my age do not have successful experiences. Since the first failure, I've been going about it like a puzzle to be solved - couldn't ever quite consign myself to the very likely possibility that I just happen to be in the 85% of women for whom IVF doesn't work.
Have been very disappointed after each transfer failure, particularly bc the embryos were healthy. So we went through each successive tool in the bag of tricks with the doc - like throwing everything against the wall and seeing which one sticks.
I'm lucky not to be affected by the meds - found that part pretty straightforward. Egg collection isn't a cake walk but you get used to it. Nor have I felt totally heartbroken - only because I've been naive enough to think that I just needed to move to the next thing to solve the puzzle. For some, and perhaps even for me, there is no solution. And that is, definitively, heartbreaking.
The thing that I have found the most difficult is the tediousness of the whole process. We've spent all year in a holding pattern, not being able to plan, drink, holiday, save money - a whole raft of normal life stuff. I'm a person who likes to live life and be happy, not stuck in some suspended reality. I have huge, huge admiration for people, including friends of mine, who have gone through many more cycles than me.
I would say this - everybody has their own threshold. And you know when you've reached yours only when that moment arrives.