Decisions and Inconsistency

Anyhoo, I am facing some monsters now a days. Well, now a weeks. Each week I weigh myself and some weeks I do awesomely awesome and some weeks nothing at all. I find myself STILL struggling with decisions. Like I know I shouldn't eat something and I do...I am tired of the inconsistency I am giving myself, who knows how much I could have lost by now if I'd stayed on the straight and narrow. That's what bums me out so much that some days I don't even feel like exercising, not even trying. I don't like that feeling because I know I am a fighter, one week I am energetic and the next kawplop...nothing...with hard work and eating, I can easily lose 2 to 3 lbs, but I make bad decisions and KILL the lost. I am going to admit I don't work on this issue too much, but it's getting to the point where I feel I am just overall disappointing myself, if that makes any sense. Like I am sabotaging myself and my weight loss and that is something I definitely don't want to do. I blame it on everything but myself...and I am tired of that too...I know that I want exercise and good eating to be routine in my life, not something I just do to lose weight...

I am starting with tossing my scale (AGAIN) I found leaving it somewhere OTHER then my place, I don't worry and that takes off a lot of pressure...
Being conscience and thinking BEFORE I eat, I know I should do this, but half the time I throw it out the window...maybe it isn't because I see or acknowlegde my goals I just eat for that moment...
Anyone else struggle with this? What do you guys do?