Though I am fairly young (23) I think your heart is definitely in the right place. Though only about 30% of bypass patients dump I believe the thought of eating something that can cause physical pain, sickness, and down right miserableness, is not something that sounds appealing to me. I am going into this situation thinking that I may never eat a piece of cake, fried chicken, etc. like that again... And since that is what helped get me into this situation in the first place, I am okay with that. I am also a "am I bored or am I hungry" person, often times, getting the two mixed up and never really knowing what actually being hungry for me was/is. I would overeat snacks, or not enough and binge at meals... both in which have gotten me to the weight I am today.
For me, this will be different because my heart and mind is in the right place. I have dieted and it has only gotten me so far. I often would diet, get to a certain point, and then decide "okay, this is good. I can handle it from here" and life happened causing me to put my "diet" on the back burner. Let's be real here, this is a lifestyle change, this isn't something that if I don't want to do it anymore, I can just quit. This is commitment, and I have always worked better when this it comes to something I HAVE to do. Another reason why it is different for me, is because of my children. My girls are my world, and will be 3 in April. To me this is my way of letting them know that it is NEVER too late to change the situation you are in. "Impossible" is not something that I want them to have in their vocabulary because everything is possible with the right (positive) mindset.