Should you weigh yourself everyday, or only once a week? Both methods have their adherents among weight loss gurus, but it's ultimately your decision. Some of us prefer to chart our daily progress, while others would rather not know until later.
If nothing else works for you and you're morbidly obese, consider having bariatric surgery for weight loss. However, since this requires removing or blocking off part of your stomach, and can cause plenty of complications, it should absolutely a last resort in your weigh loss battle.