I don't know if that's excessive amount, but like people have said, one day off might be beneficial, and I promise that it won't make you fat. One day off is important, because it enables the body to heal. On your day off, if you want, you can take a walk and stretch, for example, or pamper yourself a little and take a warm bath.
I think that it's normal for you to be worried that you lose control again, if you have been overweight before... Maybe, in the past, your loved ones have pointed out that you looked a little chubby? And also, in the past, maybe doctors have told you to count calories and monitor your weight?
Back then counting calories was necessary, for your health. But now, even though it's hard, you can maybe try to forget, every now and then, to count calories? Because now, that you are at a healthy weight, you don't have to be so conscious about what you eat. The process might be hard, at first, if you have been told for years that you must keep count of every single bite. But if you can do that, I think it might help you feel more relaxed.
Food is a fuel, and if you eat healthily, like I'm sure you are, it won't make you gain weight. Exercise is good too, but to do it just to stay thin, or to even punish oneself for eating little bit of something fatty, sounds like an ED to me... For example, when I exercise, my goal is to stay healthy and take care of my body.
By the way, congratulations for losing all that weight! It must have been hard and a long journey.