Failed 1st try

So sad just got my period, first IUI using Clomid and trigger two follicles 18 and 22, we are doing IUI bc my husband has slow motility he was at 60 percent day of IUI. Just wondering if anyone had better luck the second round and made any changes for themselves or their partner that you think helped. I’m getting really in my head reading too much watching too many social media baby experts, I’m driving myself slightly insane obsessed on the idea I struggle from low progesterone and that’s why it won’t stick. Also I’m reading alot of letrozole success stories over Clomid can I ask my doctor to switch ?