it's so great you're seeing somebody. and don't get discouraged with therapy. sometimes it takes a lot of hunting to find the right therapist/counselor. i've just now found a really good one, and it's been five years since i started seeing someone for depression/anxiety/eating problems
i've never purged. i've binged for years, and purged through overexercising. though the binging won out during college. (also important to consider sugar addiction if you have a real problem with sweets) there are many different reasons we do this. i wish i could give you more reassurance, but you're going to be fine. you've taken the first step.
letting yourself eat what you want when you want is the most healing thing you can do!!! It's so wonderful! drop the battle with food. Read anything by Geneen Roth. "When Food is Love," i don't read self-help, but i read two of her books in one sitting each. couldn't put them down. it should speak to you and perhaps give some perspective on your own reasons for binging/purging.
good luck! keep faith in yourself. oh, and the biggest realization is that there is nothing "wrong with you." you have the power to overcome your challenges. we all have a devil riding our back.
