Why do you need to lose weight so fast? Losing weight at a sensible pace is also more likely to keep it off. Developing an eating disorder isn't the answer, although I've got one foot on that path myself.
Here's a website that might help you.
Weight Loss Psychology It's a plan for losing weight that uses affirmations. I mentioned it to my T once, and she only had positive things to say about that method, which surprised me since she doesn't feel that dieting works and won't help people diet. There are articles and things there too that I thought were very interesting.
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“We should always pray for help, but we should always listen for inspiration and impression to proceed in ways different from those we may have thought of.”
– John H. Groberg