@Ihavespoken I don't know if this helps you at all, but I have "healthy eating rules" for myself that keeps me on track.
It starts with two meals a day, dinner and tea. If I wake up hungry, which is rare, then I'll have breakfast too and put honey on it. There's no point denying myself sweet things otherwise I'll end up eating twice due to the sugar cravings.
Fruit and vegetables I have unlimited because they're good for you, nutritious and hardly any calories. So if I'm really hungry and need a big meal, it's extra veg that goes on the plate and if I need a late night or mid-mealtimes snack, it's fruit or half tin of vegetable soup.
I use vintage plates and a portion is the size of the palm of your hand, so no weighing necessary. Usually one portion of veg, one protein, one carbs. If I'm not that hungry I'll skip the carbs and have two portions veg. But I eat at the same times daily so my hunger times tend to remain steady day-to-day, if that makes sense. If I run out of vintage plates I'm mindful that my meal will look like a snack in the centre of a modern plate, if it looks like a plateful on a modern plate it's too much. I never eat until I'm stuffed, I feel full after a meal but not stuffed. I can get on with things and feel no need to sit around digesting my meal before I can move again. I think that helps because it means I'm always moving, not sitting down for hours at a time.
I have a sweet tooth so denying myself sweet things is not going to work, but I limit it to one sweet-treat per day and I don't worry how many calories are in it, but it is definitely limited to one. It balances itself out because it might be a slice of chocolate cake on Monday (350kcal) and a yoghurt on Tuesday (125kcal) and maybe if I had breakfast I don't feel like I need that snack. Some days the sweet thing adds very few calories. Sometimes it's ice cream and a crushed merangue with my fruit, which feels like an extra meal.
I eat crisps daily they're one of my favourite things, I pick the salty flavourful ones over the oily ones and they're usually under 100kcal per bag. Never buy pringles or big bags because I'll eat the whole lot at once.
I drink fruit juice, but only one glass per day and I dilute it 50/50 with water. To start with it tasted wrong but now I find it too sweet to drink undiluted, your taste buds change.
I have one sugar in tea but only have one or max two cups of tea daily because of the caffeine in it, the rest of the time it's calorie free/very low calorie things like water, herbal tea or very diluted squash juice. Things like lemonade or alcohol are occasional treats, for reasons of remaining healthy not just calorific content.
If you figure out what rules you need to maintain weight it becomes easy to decide what to eat and when each day. I eat all the bad stuff like pizza, but I eat half of one with salad. I eat a square or two of 70% cocoa chocolate not a giant bar of milk chocolate. I love milk chocolate and will happily eat it even if I'm already full, the dark stuff I won't want it unless I'm actually hungry, at that point I'll enjoy it. I'm eating usually from 12noon until 10pm, eating every 3hrs roughly, but only eating a small amount and/or low calorie things. I'm not generally feeling deprived in any way. I could binge on sugary rubbish and enjoy doing that, but I don't because all my life I've heard women talk about struggling to lose weight. Everyone says it's easier to put it on that to lose it, they can't all be wrong. I've never been big and I don't think I'd like it. Not only from the prospect of having to replace my entire wardrobe but from considering how it feels to carry a small child around and imagining carrying that extra weight around with me all day every day, whenever I moved. I see really large people walking and they look uncomfortable a lot of the time. I hear people out of breath on the stairs due to their weight. I can't imagine being I'd be happy weighing dramatically different to my usual weight. That's what keeps me making the healthier choices and limiting the junk food.