Self Sabotagers UNITE!!!

I'm in the exact same boat.
I've recently lost 13 pounds -- and I am extremely thrilled by that -- but I seem to lose momentum right when I begin making the most progress. I think it is mostly a mental block because I know that the human body is capable of great things, but I choose to let negative thoughts get the best of me before I fully accomplish my goal.

I used to approach weight loss as a cumbersome activity, but I'm realizing now that it is a great opportunity for change. I've been noticing the little differences and celebrating them as big "wins" for my health. For example, I used to crave sugar like crazy; I could eat sweets every day with no regard to my health (I was and still tend to be an emotional eater). Recently I've been more drawn to fruit as my dessert and I've noticed that my cravings have decreased significantly; consequently, so has my weight. When I noticed that in myself, I was reminded of how crummy junk food made me feel and how much better it feels to have a belly full of fresh fruit as opposed to candy. In this moment I was able to make a good decision for my health and I first celebrated my mere ABILITY to make a good decision for my health, then I celebrated the decision itself.

When I indulge, I truly indulge and tend to go a little overboard. It's at that point when I think to myself, "Well, I've already blown it, so what's the point of trying?" Then cut to me polishing off multiple bowls of ice cream. When I celebrate my success in small ways, even with a literal pat on the back, it gets me energized to see what the next mini-milestone will be.

Who is truly behind that voice in our heads saying "You're not good enough" or "I don't think you're worth the effort or results"? I've been pondering this for a while because it certainly does not feel like me. It's actually a little frightening because I know that I want to change, but my beliefs about myself are so skewed negative that it seems impossible to rise above them at times. Many women experience this and it is heartbreaking.
I believe that this "voice" in our head is the years of processed food and sugar addiction; it is essentially my cravings bullying me around and it hurts.
My co-worker has a great saying: Thoughts become things.
With that alone in mind I have been able to transform my thinking, improve my mindfulness, improve my self-image, and improve my physical health. It's ironic that during the time when I've been more concerned with my overall health (mind, body, and spirit), I've actually lost more weight than any other time I've attempted to lose -- and I've not even been working out recently. As cliche as it sounds, it is amazing to see what positive thinking can do.