How do u deal with BFN

Today was very hard for me. I was sooooooo convinced I was preggers since AF was 3 days late. Then boom the evil evil feeling of menstrual cramps took over and the came AF in full force.  Now I'm super sad/depressed and I have crippling cramps. I hate everything right now completely mad at the world is an understatement. And yes I know I need to stay positive but dammit I'm pissed. So I'm begging u ladies if u read this please please comment don't just pass this after hearing my #KanyeWestRant lol I need to know how do you guys deal with the disappointment. I'm going crazy with crying and being mad I'm just so mentally exhausted I'm so close to giving up on ttc because nothing's works. Maybe I'm just not that blessed.... Clearly...