Firstly, as BW said - Breathe. Secondly, do not blame yourself - you are not doing anything wrong !!!

I think my first cycle of IVF was the hardest because it was all so foreign and there was constant worry that my body wouldn't respond. In the end I got through it but it was such a learning curve for me and how my body responds to the meds.

Voice your concerns with the FS tomorrow and ask all your questions. Perhaps write a list if you think you'll forget things at your appointment.