I will say though, try to avoid promoting things like keto diets
Why avoid promoting something that works?
If you want to lose fat, the only way to do it is to go into ketosis. It's not scary witchcraft, it just describes the state of burning fat instead of carbs for energy. You can do this by either exercising enough to burn all the carbs that you've eaten (congratulations, you are now in scary-ketosis), or by eating less of them in the first place. If it helps, stick a different label on it: low-carb diet, paleo diet, or whatever you fancy. It doesn't mean zero carbs, you'll always get some, it's just about keeping them low.
There's nothing healthy or necessary about sugar (including fruit / "natural" sugar), bread, pasta, crisps, chocolate. You can make an argument for some carby fruits and veg, but if you eat them, you'll need to burn those carbs off, and there's very little in in there that you can't get through vitamin and mineral supplement, or just sticking to non-carby greens.
Keto doesn't mean nothing but cheese and bacon (unless you're trying to maintain or gain weight
and are highly active or in training, and I wouldn't recommend it for that). Weight loss keto can mean mostly above-ground veg, nuts, fish and chicken. Just keep all the healthy things from your regular diet, and drop the starch and sugar. Last night's dinner was cabbage, kale and broccoli with finger chillies, mushrooms and cashew nuts fried in a little butter with lashings of garlic, ginger and then pan-steamed in rice wine vinegar.
I've been doing it for about three months to lose the lockdown lard. The first week is tough, sugar and carbs really are addictive, and you'll curse anyone in your household who toasts bread or bagels. But once you've kicked the habit, wow, the benefits. I don't eat breakfast now and don't miss it, so it's also a restricted-hours diet. I've shed significant visceral fat, my blood pressure has come down, I'm clearer headed, have more energy and more consistent energy, and feel far less hungry - hunger pangs seem to be a symptom of burning the last of your carbs, and your body saying "No! More cheap energy! Don't starve me, bro!" - but the only way to burn fat
is to starve, it's not a dirty word.
I'm aware that this is the zealotry of a convert, but I really would suggest giving it go if you want to lose fat. It's sustainable if you can get over that first week or two, and change your shopping habits. If you crack and give in, well, then you'll have learned something interesting about carb addiction.