When doing the Try part of Think, Try, Learn, it is natural (for me, at least) to judge my progress. For example, right now in my Overeating reset experiment I'm working on how much drinking chocolate I'm taking each day. I'm focusing in it because it feels like I've gone a little overboard on it, and I'm curious. I'm applying the TTL principle of simply observing how many servings I have each day. The key is to not judge, as much as possible. That is, instead of thinking "Damn - this is my fourth today!" I'm trying to activate my curiosity, more like "Hmm - Interesting. The subject has had his fourth cup today." The thought is that it kicks off what I call the observation -> awareness -> change cycle. Ideally I'd also track comfort/fullness, but that's too much right now, so I'll just measure and see what happens.
Note that this approach applies to any change you might want to make - diet, of course, critical thoughts or comments, or distractions or interruptions at work. In a sense it's a distillation of Kaizen where you make one small change at a time, but it's making one small measurement at a time. I found the book One Small Step Can Change Your Life: The Kaizen Way to be a helpful introduction to the ideas. Here's how Frederick Muench puts it at Self-Monitoring Made Easy on Psychology Today:
In fact, study after study has shown that simply monitoring your behavior is a powerful intervention in itself.