Agh, what a pisser. I think everybody has a few lessons like that when they're learning. I'm with ellakite - it sounds as though the best thing you can do is take a few days off from it and come back to it when you're in a calmer frame of mind.
I know it doesn't feel like it sometimes, but you'll get there. xx
no subject
I know it doesn't feel like it sometimes, but you'll get there. xx