Ladies give me a boost

SO and I willbe doing our 2nd medicated <a href="https://glowing.com/glow-fertility-program">IUI</a> (letrozole and trigger)this coming tuesday (Jan 7th). After getting my period last dec 26 (1st <a href="https://glowing.com/glow-fertility-program">IUI</a>,with clomidand trigger) I was heartbroken and felt like loosing hope. I pulled myself together and called my RE for the next scheduled round. And yes it's coming. I really stop myself for thinking about it. But now that the day is almost here I am getting scared again and lossing hope. I don't want to see any BFN again. And also We are using sperm Donor. No female infertility issue thats what makes me nervous.