@Peanut1980 hello, hopefully you remember me, I was on previous infertility threads about IVF/ICSI at various times and have been following your story on here, hoping for the best. I'm really sorry it's not worked this time for you. Big hugs. I didn't post during my last cycle as I wanted to try a different approach, and to be honest it's all numb for me by now...
We have a similar background (1 child already, conceived naturally, same age, etc...) but I am one step ahead in a way in that I have now already completed my three fresh cycles and unfortunately all failed. None in freezer. So my journey comes to an end. No more money or emotional energy left and I am 40 next year. I am dealing with it OK but as someone else said, it comes in waves. A true rollercoaster.
Have been researching how to best bring up an only child and am trying to make the most of what I/we have in my son. Obviously we are blessed that we have him and I am happy for that every day. Goodness knows how we managed even one, knowing what we know now!! So frustrating...
I really hope for you that you have one more go and it works!! So then at least there is a happy ending for one of us. 
And for everyone else on the thread (that I have been stalking, sorry!): well done on the much deserved bfps, commiserations on the bfns, fingers crossed for next time and know that we are all in this together, supporting one another xxx