Welcome, you will find the support and information you need right here.
Stop dieting and start a life-style change of eating less--and moving more. If you're overeating by a 1000 calories a day--you're gaining about pound about every 4 days.
Not good!
If you're scale is reading error on it you need to find a scale that goes higher-so that you know exactly how much you weigh now.
Once you find that out, you can go to this site to determine where to start.
http://www.webmd.com/diet/calc-bmi-plus
With 6 kids that should be keeping you fairly active. Cleaning house, doing laundry, going to the grocery store, etc. If you can invest in a Fitbit anywhere from $60 to $100, it will keep track of the steps you take during the day, and you can sink that with a free app called--myfitnesspal that helps you keep track of the calories you're consuming during the day. They are both so eaa...sy. Myfitnesspal has an enormous database of food from everywhere, including fast food. If you're faithful about entering your food you know exactly how many calories your eating from breakfast to dinner. You can use both of these with your smart phone or computer.
Don't go on any weird diets. They are responsible for yo yo dieting. You lose a lot of weight fast, then gain it back twice as fast, plus some. Stay with normal--just eat a lot less of it. Make healthier choices when you can.
It won't be easy, you'll get hungry, you'll want to quit, but never quit. It's kind of like the airplane--you put your air mask first, before you help the kids put theirs on. If you don't take care of yourself, and you keep gaining weight there will be a time when you won't be able to care for others.
Good Luck to you on this journey!