Can someon give me to specific link to a website that shows you how many calories you need in a day?

Google. You will find more websites than you will know what to do with. Understand your caloric needs change as you age as well as from day to day depending on your level of exercise. Sedentary people may even need fewer than 800 calories per day if their metabolism is slow. You might check with a weight loss place near you to see if they can find what your resting metabolic rate is.