Not sure what to do....

So once again I am out this month. That makes month 8 a failure too. I am so frustrated... It seems like everyone around me is pregnant. AF came today.. 4 days early and out of nowhere. I have three kids from a previous marriage.. All of which were surprises.. Two of them while I was on birth control. All I had to do was look at my ex husband I was pregnant. My boyfriend and I have been ttc since March after a tubal reversal.. And it's just not working. All I have gotten in the past 8 months is a diagnosis of PCOS and Hyperstimulation from clomid... He is so relaxed and calm about everything and just it will happen when the time is right. I seriously think I am going to lose it the next time someone says that to me.  I have changed my diet, stopped smoking, started exercising... I take my temp and pee on ovulation sticks and check my cervix.... I lay there for ten minutes after BDing... Geesh, I seriously think I have done everything  I can think of and read. I just don't know what to do anymore. Sorry for the long Whiny post... I just needed to vent to people that would understand and not tell me to calm down and it will happen... :(