In need of encouragement (vent alert)

Super frustrated! I feel like I'm losing my mind. I wanna have a baby so bad, I literally cry everytime AF shows up. Hubby and I have been ttc for 9 mos, and I know it may not seem that long to many, but I'm extremely impatient by nature, and this process is taking forever! And to top it all off, EVERYONE AROUND ME IS PREGNANT! My sister is 8 mos along, and there are several people that I know, that have revealed their pregnancy in the last 4 days alone. I feel terrible because, while I'm happy for them, I'm wondering when my turn will come. Is there anyone that can give me any advice? Encouragement? I need help!