So tired of disappointment (rant)

So I feel like my body teases me sometimes. I get all the symptoms, even faint lines once in a while. But it never ends up being my rainbow baby. Three years of trying and three miscarriages. It's depressing, because I almost feel like it isn't going to happen, ever. I beat myself up and make it worst but it's just so exhausting!!! Sometimes I wonder if I should just abandon all hope..... But I psyche myself up and tell myself every month "This is my month!!!!" Ugh. How do others in my situation cope? I know I'm not alone.... It's just so hard sometimes.