Follicle Failure...

Mrs.🅱️ • Mama 👦🏼 • 👼🏼 • 👼🏼 • TTC 🌈
So, at my cd 12 ultrasound (50mgs clomid 3-7) I had a 14 mm follicle on my left ovary, and a 12mm on my right. Today, at cd14, my left is 15 mm and the right is gone. 
I'm feeling like such a failure...I thought follicles grow 1-3mm a day? Not 1mm every 48 hours....this is so depressing. I wanted more follicles, and only have 1. And it's not cooperating.
Any ideas on things to do to make it grow!!?