I have been the same way in the past... I would come home from work, sit on the couch, flip on the TV, and munch away my evening. It was a way to relax and unwind. Hobbies helped me a little, but really what is helping is that I am exploring the emotions behind it. Why I was doing it - what I was feeling. I also tracked my WW pts. and when I was done for the day, I would just sit there and not eat anymore. I would tell myself, taht was it, I was done for the day, end of story. After a few months now, I find that I think about it A LOT less. I can sit and watch TV and relax and unwind without munching. I also make sure to have a big healthy dinner with lots of veggies so I am not actually hungry in the evenings. If a case of the muchies hits me bad, I pop a bag of 94% FF or Lite Butter microwavable popcorn.
I have bought motivational books, scribbled in my journal, and listened to meditation tapes, all to help myself out of this cycle... and it is DEFINATELY helping.
I also spend a lot of time focusing on how I FEEL. How good I feel when I eat healthy, how good I feel when I exercise, etc.