Congratulations! I've been at goal for most of 39 years. Like Bberkeley says, exercise might make weight loss and maintenance easier, but it isn't necessary. When I lost my weight in 1970 on Weight Watchers, no one even talked about exercise; we did it only with calorie restriction. And we didn't count calories. WW had the Plan and we stuck to it. I found that the more I was able to enjoy food in the Plan life, the easier it was to keep weight off.
I can attest that it is possible to keep weight off primarily with calorie restriction. I have never "exercised" formally. I do, however, walk around a lot. I carry things around the house one at a time. I do my own housework. Hauling buckets and vacuums and laundry up and down steps isn't "exercise", it doesn't trim the waist and improve the hips, but it helps keep weight down. And lately I've been shovelling a lot of snow, with more to come tomorrow.
Your scale is your tool now, not your judge, and my scale has been my best friend for years. I weigh every day and adjust my day accordingly. Today I can't have bread with dinner, maybe tomorrow I can. I have wonderful menus for either scenario. I would rather obsess over recipes than weight.
Welcome to the adventure of maintenance!
No one ever got up in the morning wishing she'd eaten more the night before.
Original Goal: 114. Current old lady goal: 106.