Drying up

It's 3 in the morning and I'm pumping for the second time tonight.  Yesterday I got practically no milk while pumping (0-2 oz) and Greyson ate like crazy.  I think I may be drying up and it really makes me sad/frustrated/depressed and feel like I'm failing a little bit, which I know isn't really true but feels that way.  I've tried everything including the nasty Mothers Milk tea, Lactation cookies, increasing calories, drinking water like a camel, and Fenugreek which will have me smelling like maple syrup by morning.  The one thing I probably need but can't figure out how to get is more sleep. It's just so hard to sleep on my days off, I feel like I have so much to get done while Grey naps...  Anyway, I'm hoping it will kick in again and I can continue breastfeeding.  I'm praying and giving it to God.