How i can lose my weight?

Well: You need to have a healthy lifestyle eat healthy food and exercise 1 hour daily. Now also watch those calories. 1000 cal per day. This is not much. But to be healthy your entire lifestyle must change.

Eat less & exercise: The key to losing weight is not a temporary diet but permanent changes. Sugars and simple carbs from grains esp. cause weight gain. I like Dr. Furhman's diet: http://tinyurl.com/ktampgg Dr. Weil has useful info: http://tinyurl.com/m8avwzh - see his "discuss that" link in his article. Also see https://authoritynutrition.com/weight-loss/ for many useful articles. Exercise is also important.