Can I suggest something? Focus exclusively on your health, fitness and wellbeing, not on your weight or size. Start with exercise. NOT to lose weight, but to make you feel strong and fit and flexible. Try doing 20 mins basic yoga flow online 3 times a week and on days in between, do 20 mins bodyweight exercises 4 times a week. You need no equipment for that as your own body's weight is like inbuilt dumbbells! You quickly get a taste for it.
Being overweight is actually a benefit in bodyweight training - as you are automatically working out at a harder level than slim women, since you are carrying heavier weights. So when you squat, side plank or do a bridge, lunges, lay down press-ups etc, you are quickly gaining strength and tone. Keep at it and you will start to see muscle definition within a fortnight. Once your stomach and bum naturally tuck in, your shoulders naturally pin back instead of stooping then you look half a stone lighter anyway. The yoga helps you move with grace and confidence and balance. A good muscle stretch makes you feel so alive. You will feel good about yourself once you connect with your body.
I'm still overweight. I hate dieting. I love food. But I am strong and shapely. I like my body when I exercise often. In fitness classes I often feel self conscious as the biggest or one of the biggest women in the room. But that's a problem of attitude I need to work on. I have been given loads of compliments, on strength, posture, and even found out a couple of people had told the PT they were aiming for a body like mine!
With food, I try to focus mainly on health and nutrition - lots of veg 5-10 a day and very varied, some fruit 2-3 a day. Lean protein - eggs, poultry, fish with some pulses and red meat. But that might not be right for you. You know what your body responds well to. Keto is awful for me, I need low fat to feel good. I need to go easy on wheat too. As you pay attention to what foods give you energy and boost your mood properly (I don't mean a sugar-high boost that is followed by a dip) you start to see food as nourishing and health-giving, not good or bad.
Honestly, I'd like to be a stone or two slimmer as I was before DC. But, I'd rather live as I do, instinctively, with a happy attitude to food than constantly feeling guilty over every mouthful. Being fit, strong, vital, confident, with good posture and ability to run for a bus or up a flight of stairs, enjoy a family hike, bend down to pick something up from the floor - these are what help us feel good about our bodies long term. If you can't sustain a diet and lifestyle that puts you permanently in the BMI ideal weight, then a focus on long-term fitness, strength and health is worth a go.