Jenny, it’s a shame you didn’t post this two days ago so I could have answered in the Q&A webinar on Sunday.
“I often feel deprived and resentful whenever I consider not eating something” – yes, this is a sure sign you are not choosing.
“I often have thoughts along the lines of ‘I have to stop overeating so I can be healthy and set a good example’, or ‘I have to stop overeating so I can lead a long healthy life and be around for my children as long as possible’.” – this (and you may have more examples) is where your denial of choice comes from.
I suggest you do the exercise that’s under the Webinar Replay video for Week 5.
As with any justification for overeating, your conviction that eating imperfectly won’t work will only be effective if/when you believe it, when you buy into it instead of challenging it. This is covered in Week 5: seeing your justifications, and also seeing through them at the time.