YANBU to ask OP, but sadly there's no easy answer to your question.
I think you shd probably ignore what other (slim) people tell u they eat, as we are all different. Some people can eat what they like and never put on weight while others only have to look a some cake to gain a kg! So you have to find YOU OWN plan of action!
A good way to start, I am sure you know, is to try to eat mostly (or only) 'good' food & avoid all processed foods and sugar. But agree with others on here that the juicer is a BAD IDEA. (Just eat the fruit and veg as it comes with the fibre attached. But not too much v sweet fruit.)
Then 'make friends' with "hunger". A bit of hunger = good. (Of course, u shdnt feel you are starving all day long, just hungry enough to really look fwd to ur food.)
Smaller portions & keep reducing them until you KNOW you are losing fat.
Or, do like me and have one BIG meal per day? (I find this much more satifying than 3-5 mini meals.)
Enjoy your food when you do eat, while trying not to over-eat. Sounds simple but it's not easy to carry out as we all know. But that's what you need to do.
I am quite slim (I think) cos I eat only ONCE A DAY, (usually), in the late evening and so I can have a good meal without worrying too much about the calories as it's just ONE MEAL. Most poeple find this weird, but it really suits me and keeps me slim in a way I enjoy, as I get to eat as much as I want before bed. (Then I sleep well on a full stomach.)
I drink tea/coffee all day long (with lots of skimmed milk but no sugar) and so the milk seems to keep me from feeling properly hungry. (And I ignore any tiny hunger pangs as being not 'proper' hunger.)
If I AM very hungry, I will eat something eg 2 apples, or a big lump of cheese. But I am used to only 1 meal at night now, so I can usually last till early evening and stimes much much later.
As I eat so late iin the day (even as late as midnight) it means I never wake up feeling hungry. Some ppl think this is a terrible way to eat but it SUITS ME! I cannot sleep when hungry and never find sleeping on a full stomach unpleasant.
I eat V SLOWLY (always have I think) and therefore make the food last longer and try to enjoy the eating for as long as poss ... I savour each mouthful.
When I used to eat bfast & lunch (and supper) I was fatter and had less energy & struggled more with my weight. And I was more hungry all day and felt more tired. Then being tired made me eat more. (Vicious circle?)
So if u asked ME what I do/eat to stay slim, I would say I don't eat that much I suppose, but I like to save it all up for a biggish meal at the end of the day which I really look fwd to.
I avoid processed food/sugary food, if I can, and am mindful of quantities. (Tho I think my appetite has shrunk a bit?)
FYI, I have never been anorexic or bulemic or v underweight or very fat. I am in my 50s. So eating like this hasnt led me into any eating disorders. And I look/feel more healthy now that I used to be when I was younger.
I eat lots of (baked) potatoes with butter, (eg 3-4 medium potatoes with big lumps of real butter) or lots of cooked veg (eg a whole broc, or cauli, or a mix of veg & brown rice eg with friend onions, green peas, chickpeas, sweetcorn ... veg steamed in microwave before added to rice, or a big mixed salad with lots of ingredients & loads of olive oil dressing. For protein it's (some) cheese/egg/fish/chicken but not everyday. I am mostly a veggie person, but I do also eat meat/fish/eggs occasionally. I eat fruit but not lots and not everyday. I try to avoid sugary things, but do sometimes have choc or biscuits or flavoured yog or tiramisu. If I haven't had any sugary food tho, I quite like a cammomile tea with MILK (!) and a good spoon of honey ... right before bed. (Just satisifies the urge for sweetness.)
I also enjoy a bottle of beer pre-dinner, or some wine or sherry or even a spirit (eg vodka) with a mixer, but not everyday cos I control my intake of alcohol in the same way that I control my food intake ... ie not obsessively but v mindfully. (Alcohol = empty calories and not good for the liver etc. But enjoyable all the same!)
Mostly, I can void eating any 'rubbish' while out & about (eg takeaways, burgers, cakes, crisps, icecream), cos I find it quite easy to say no to these. If v hungry & there was nothing else I would eat them, so I am not an orthorexic. However, my tolerance of "hunger" is probably higher than some other people's, so I can usually always wait until there's a better food choice available, (eg at home) or I will take some home-made sandwiches/meal with me if I know this situation might arise eg on a long journey.
HTH.
Lots of luck as I know it is VERY HARD once you have got more than a few kgs which has to go. (But you can do it!)