Yes I lost about 20% (lost 18 Kg of 83Kg) in 2020 and have kept it off (2Kg crept back slowly over last winter due to snacking with the heating off, slowly losing that now)
Basically I didn't go on a diet as such, I refocused on eating more healthily and looked in that as a positive thing. I was pleased with myself for taking better care of myself, rather than viewing weight loss as a punitive regime.
Bit by bit I cut down alcohol (had been having a glass or two of wine every night) , stopped snacking on less healthy stuff, and adjusted portions of normal evening meals, especially the high calorie carbs. But just smaller portions, still ate ‘normal’ dinners, just added more veg / salad.
I eat things I enjoy, I do still have ice cream etc, but as a conscious ‘enjoyment’. I did have to go a bit boot camp to begin with to break my craving for sweet stuff all day long.
Structured day:
Breakfast: I like frozen berries, Greek yog, low sugar meusli, sprinkling of flax seeds.
Lunch: no more than one slice of toast with soup or an egg, or sardines, tuna (in spring water), avocado or similar, good heap of salad or veg (e.g sometimes I have a heap of cooked frozen spinach with a poached egg on top on wholemeal toast)
Snack: keep healthy moderate calorie options ready! E.g Apple and 2 oat biscuits, banana, cup of cocoa (not hot choc) with semi skim milk and a packet of not-toffee popcorn
Normal dinner, easy on anything fried or loaded with cheese, don’t add garlic bread as a side, and watch portion size.
And of course I still have cake on birthdays, ice cream on a day out, etc.
But that’s just what suits me. Finding the right way for you to feel happy with what and when you eat is key, I think, so that you can establish healthier eating as a way of life, and sustain.