Here’s a list of some of my habits / ways of thinking from my own weight loss experience (many/most/all of which I got in some way from other people). Maybe you find some ideas in there you can apply in your own situation:
Also: I really recommend John Walker’s book “The New Hacker’s Diet” and his practise of using a weight moving average chart (The Hacker's Diet). Along with many others he makes the point that exercise is a great thing but rarely a big factor in weight loss. Habits and ways of thinking about it on the other hand… I’m quite sure without many good ideas I got from other people I would have failed, because I wouldn’t have known how to make it easier to stick to.