I was bulimic for about 5 years, but have recently recovered. I felt so alone and ashamed during that time. Something in the tone of your post reminded me of how I used to feel. It was absolutely aweful! I felt consumed by it and didn't think I would ever recover to live a life where I wouldn't constantly think about, and struggle against binging and purging.
The fact that you were able to reach out here is a step toward recovery. I think it is important to find someone you can talk about this with like your doctor and/or a therapist or even a meetup or support group. Good for you for writing down your thoughts and feelings - That probably helps you to be self-reflective.
Continuing to focus on your weight and weight loss is not going to help you in this. Allow your body to have food. Not feeding your body will slow your metabolism. Be kind to yourself. Oftentimes, bulimia is a coping strategy (a poor one, right?) for stress and is about gaining control. If you want to work out as a better coping strategy, fine. If you happen to overeat one day, it's ok! You'll see that it won't cause you to gain weight. If you happen to "fall of the wagon" and purge on your way to recovery, that's ok too - You haven't ruined anything. Be kind to yourself, it's a tough, tough thing to get over. You are certainly not alone in this.
I can't say that I don't think about or worry about my weight at all (how could you not living in this society!?), but it is no longer the focus of my life and I don't think about purging anymore (that took about a year after I considered myself recovered to completely go away). There are so many factors to account for regarding the illness and recovery so please let me know if you have any specific questions or thoughts and I'll do my best to let you know what I think based on my own experience with bulimia. I wish you well!