You have obviously made some incredible achievements in your journey, I suspect you will continue to do so with a few little tweaks.
I would recommend a couple of things. First, you should reach out to a bariatric dietician and try to get a handle on your nutrition. Second, if you truly think you have an addiction to sugar/sweets, you may want to talk with a counsellor who has experience in that area. If it is truly that difficult to give up something that isn't healthy for you and could potentially reverse everything you've worked so hard to gain, it might be helpful to talk with someone about it.
Exercise really isn't that effective in offsetting overeating. There are so many benefits we get from exercise, but weight loss isn't really one of them. You work out a lot, so you'd see more benefit than the average person who exercises less, but the biggest issues probably boil down to : 1. The quality of food you eat, and 2. The quality of your microbiome.
If you are eating too much sugar, that will obviously have an effect on your calorie intake, especially if you are eating refined sugars vs. fruit sugars with fiber. Your body may be craving more carbs due to your workouts, but you may be giving it the wrong carbs. If you aren't getting enough variety of fiber and other nutrients compared to simple sugars, your microbiome isn't going to be fed properly, and that can send some really mixed signals (meaning not beneficial) through your body and brain.
You might try soothing your sweet tooth in stages. Look to fruits to satisfy the need for sweet, or a different natural sweetener like stevia. Look at alternatives that don't carry as many calories. If you have a fairly limited diet, try expanding what you eat, specifically in the area of plants and fiber to feed your microbiome and improve metabolism.
Best of luck! You've done so great! You can get back on track.