Running out of hope

My husband and I have been trying for our first baby for almost 3 years now. He had a vasectomy reversal and I think that’s what the problem is, low sperm count. But we are getting so frustrated. We have been through 2 round of failed IUI’s. I’m 1 DPO today and trying to be hopeful for the next couple of weeks but I big part of me is kinda like, don’t even bother. Anybody feel this way month after month?