All these things that I have done

What you could try is food that actually does prevent you from indulging, like in the GI diet: seed grain wholemeal bread instead of white, nuts (walnuts, peanuts, etc.), they fill you up really fast and believe me, you won't feel like eating afterwards. Houmous (chickpeas) is very good for nibbles , on seeded bread. I got the book by A. Worrall-Thompson and it explains everything. You can get some photocopies of recipes, if you want.