How do you get past the BFNs?

TTC baby #2 has been the most stressful, hard, painful, and disappointing thing I have been through. My question is, how do you ladies deal with the BFN after BFN each month? I barely make it through the TWWs which have continued to result in nothing. I just don’t think that my mind, body, or spirit for that matter, can go through it again, month after month. I’m bitter and angry and heart broken and my husband doesn’t seem to understand. It’s mentally draining and I don’t feel like myself. Any advice would be greatly appreciated. As of now, I plan to have my Mirena put back in (I had mine removed so that we could begin TTC) and just trying to accept the fact that maybe we will only have 1 child.