When I read your post, I wondered if you meant that you were eating food and purging, or drinking the lemonade and purging it. Either way, you aren't allowing the cleanse to do its job.
With compassion, I suggest to you that you forego attempting the cleanse and seek the help that you need to address the bulemia / anorexia. It is so hard on your body, and the long-term repercussions, as I'm sure you know, are potentially deadly.
I wish you all the best as you seek the road to health.