Hi Scrumpert
Sounds like your problem is that you have bought into the "eat lots of starchy carbs" "cut right down on that nasty artery clogging fat" mantra that has failed so comprehensively. The evidence of this is all around us to be seen.
About 10 years or so ago I was taken in by the "slow release" carbs nonsense i.e. porridge.
I would have porridge (yum NOT) at 6.30 - 7am and by 9.30 - 10am I would be totally ravenous. But now I understand about insulin (the hormone that stores excess blood sugar as body fat) and how after a carb based meal you have an insulin spike followed by a crash followed by the desire to eat a scabby horse.
Looking at you usual diet can I make the following observations.
About 7am Porridge (carbs possibly with extra carbs/sugars from sugar or honey maybe) and a cup of coffee (with milk maybe i.e. milk sugars/ Lactose possibly)
Around 10am I have a sandwich (due to hunger / insulin crash)(also bread/carbs)
12pm I have a couple of pieces of fruit (carbs) a sandwich (bread/carbs) and a packet of crisps (carbs / MSG / trans fats and Acrylamide, a cancer-causing and potentially neurotoxic chemical etc etc etc).
Around 6.30pm I have a decent meal consisting of a piece of meat a couple of potions of veg (potatoes maybe also known as carb bombs) and also a potion of some sort of carbohydrates (MORE carbs !!!)
What do I eat:-
No breakfast (you only eat it because we have been indoctrinated to think that we should).
I break my fast at lunch time with two soft boiled eggs and a small avocado (good fats even better proteins and next to no carbs)
Snack IF I feel hungry:- a few organic (pesticide free) nuts and 4 small squares of 85% organic chocolate (some sugar/carb but not much).
Dinner/tea time:-
Lots of organic (low starch/sugar/carb) veg and a small amount of good quality (unprocessed/ non factory farmed) protein /meat.
Do I fell hungry?
Put it this way:- I'm writing this at just gone 2 pm UK time and have only had a black coffee (no milk/lactose/sugar/carbs) and some drinks of water (no fruit juice/sugar/carbs) and I could EASILY last until dinner/tea time.
What do I avoid 99% of the time:- sugar, bread, potatoes (except sweet potatoes) milk, any sugary drinks. That would be my tip.