Feeling...nervous

I haven't posted in awhile because honestly I was just feeling very discouraged and just let down after my second miscarriage and tons of bad news. I started seeing a specialist about 2 months ago and it seems I've had nothing but bad news since. Low thyroid, incredibly low AMH, blocked tube, the other tube with an abnormal enlargement, uterine lining too thin, the list goes on. Well, I've been on Synthroid for my thyroid, letrozole for my ovulation, and just started estradiol for my uterine lining. Tomorrow morning I am scheduled for my first IUI. I am a bundle of nerves.