The first step is recognizing the problem!! Good for you for making that first step!! as for the mindless eating..i was doing it too. thats when i saw something about having one..and ONLY one place to eat, preferable the kitchen or dining room table. AND, EVERY time you HAVE to use a plate, napkin, fork, knife and spoon. and put them away aftrer.
I have to tell you, IT WORKED. its a pain in the butt to "set" the table when i was boredom eating. it wasnt worth it, and it opened my eyes to how much i was doing it (but..i NEVER eat!!--yeah right...i sure WAS eating!!)
anyhow, give it a shot..maybe it will work for you too!!