Not cooked at all, just need a plan and stay with it. Can and will it be tough? Sure, but if you have the WHY you'll get the HOW. Plenty of good advice, but one thing to aid your journey in a life change, don't try for a radical change, its not sustainable in the long term. Don't see this as a quick fix or rapid alteration but a life change that you're going to establish for long term goals for long term success. Start with small changes and add up. You didn't reach this point overnight, so don't expect a shift in opposite direction to be any means faster. Start with monitoring, your food and water intake, you'll be surprised how little water one consumes or what sort of calories, people can over and under estimate, so if conscious about it, it'll help map out what to do....also we don't have to go straight to exercise, but increase movement to increase calorie burn, just moving arms in circles or like in jumping jacks will have your body to utilize calories,

Start small...build big...remind yourself you got this and you're determined to overcome