How do I keep from losing my mind?!?

Liberty
I'm 25 and have no history of fertility issues. My husband and I have been trying for 8 months and we still haven't gotten pregnant 😭😭 not a single positive test, and my doctor is beginning to think I may not be ovulating. 
Every month, I tell myself that I'm going to focus on other things, that I won't let it (trying to get pregnant) be my sole focus the entire month. And then I get my period and then I'm an emotional wreck the entire time. 
I have a job. I'm not home all day. But I don't know what to do to keep myself from dwelling on this so much. What do I do to keep myself from losing my mind?