Brutal, hopefully it's just bruised from slapping the ground.
The crash that shattered my triquetral wasn't any worse than yours. Broke the scaphoid on the same side, years earlier, overshooting and flat landing a drop at Whistler. no crash, I rode it out and still cracked it. Wrists (at least mine) don't hold up to very much.
I agree with tryin to get a 5" bike. More comfort, more forgivable in the rough, both of which will keep your enthusiasm up to bike more and more