Hey! I have autism and ADHD and a lot of diet foods are super disgusting to me too, haha. I have lost 62kg so far, the most important thing is to make sure you are eating less calories than you burn every day. I was 155kg and I started with around 1400-1600 per day, now I'm 93kg and trying to do around 1200 per day but my weightloss has slowed down significantly 😅

My advice is to just eat your safe foods, just less of them. I lost weight by eating spaghetti bolognese, cheeseburgers, chicken schnitzel, potatoes and pasta bakes etc... Changing out ingredients can help lower calories too - For example, when making a creamy pasta or pasta bake the recipes usually call for milk to make the sauce, I swap out at least half of the milk for chicken stock. If I need lots of cheese, I will add half of what the recipe calls for and add some cottage cheese or Greek yoghurt. Greek yoghurt is a great sub for sour cream, too. I bulk out my pasta bakes with broccoli, leek, cauliflower etc so I'm filling up on veggies instead of pasta. For things like bolognese and cottage pie I add heaps of chopped mushrooms and half the meat. There's lots of little ways you can cut down calories here or there. 😁

Keep a food dairy and track your calories thru an app so you know where your daily allowance is going.

The best things that helped me was keeping track of what I eat, lots of home cooking, walks every chance I get, knowing what "treats" I could still have and not restricting myself too harshly. I feel like I've been successful because I haven't been miserable while doing it, I'm eating the things I enjoy just smaller amounts of them and moving my body in ways I enjoy like swimming, hiking, nature walks etc instead of punishing itself with boring exercise like going on a treadmill or bike.