I'm a part-time Bulimic, and overwhelmed over my WeightGain

I was feeling great; on top of the world and looking down on my weight loss. Then one day something stressful came my way and frightened and stressed the heck out of me. At the same time I began binging majorly, and the purging that I was doing in the past, I.e : exercising after each major binge, and water pills, and laxatives, and diet pills, and fasting mostly when not binging. It all just stopped working. I feel as though someone is sneaking in when I finally crash at nite and fall asleep, and their intubating my body with thousands of calories cuz they are aware of my little secret practice of binging and purging. Now I have to do more of everything in order just to NOT gain weight, and I'm feeling really exhausted in all of this obscession too. Any suggestions out there .What should I do to not gain any more lbs??????