Wow I too am impressed with the replies here! One that has been said repeatedly and is a huge one for me is that I pretty much stopped eating processed food; not entirely and sometimes I use a can of low fat soup in recipes, etc.... but my general rule is "If God made it it is okay to eat; if mankind messed around with it to "improve" it use caution."
The wonderful part is... it is not hard! Got myself a crockpot and started digging out recipes and sharing them with friends. You can cook up a whole pot of something and put it in freezer bags and have wonderful meals! I make separate stuff for lunches at work, etc. So when everyone is chowing down on the cookies or other junk it is okay... because I know what
I have stashed away or at home for dinner! YUM! AND they do satisfy my hunger much more than processed foods.
Also I always have fresh fruit and veggies around and pretty much eat all I want of it. BUT I find that most of the time when I am "hungry" I'm really not! A few big chugs of water cures it... and if I really AM... well, there's that apple right there!
Also true about exercise... gets my body moving and I don't think about or crave food nearly as much! AND all that sugar and junk IS addictive! Once I get past the first month or two without it, it's no problem! I can sit in a roomful of people eating cheesecake... my favorite! (In fact I DID last week LOL) and it doesn't bother me at all.
Hang in there and don't give up. And DO resist the temptation to go throw it all up!!

I'm sure most of us have thought of it but that is NOT the solution. Stick around here where there is lots of support, advice and encouragement.