I am SO frustrated and sad.

I don't know what to do anymore. This is the longest cycle I've ever had. Day 45 today. I'm never ever longer than 40. Yet I'm getting faint tests at best. Could be my imagination. Here's what I got today. I wake up every morning thinking oh today could be it! No AF.. yet I hold my pee all night for this. Going on 1 year of trying. I guess I'm just venting to you all because I know you understand. All my friends have no trouble getting pregnant and no one has any clue what I'm talking about.