i slipped...

right back to the bathroom and purged after tea!! im gutted with myself... but to be honest i was thinking when i was doing it that this was it.. i dont want to spend my life with my head down the loo.... i never want to do it again!! reason - i binged! i eat a WHOLE packet of white choc fingers!! what do i do?? do i write it on my food diary for my therapist to see... i feel sooo ashemed!! :(