ttc takes long

I'm 32 and been ttc 7 months, I usually am just disappointed when AF arrives, and just forget about it 2 hrs later.. but Today Im soo emotional about it, sad, down & out and wondering how much longer it will take for my first baby. I tried my whole life not to get pregnant until I knew I was really ready, and now it's taken much longer than I imagined. (I'm in my car on my lunch break, and I just needed to let my feelings out. )Im sad.