Disappointed...Again!

I just need to let this out! I've been trying to conceive for a while now and have had so many tests and one surgery to correct an issue. The SO has been tested as well. I was really hoping that this would be the cycle, but my bbt is going in the wrong direction and is indicating AF is coming. I just don't understand why we're having this problem. It's so very frustrating and depressing. I'm at the point of wanting to just quit this whole ordeal.  How do I get pass this feeling?