Unfortunately the official definition of healthy food, ISN'T for us type 2s. Until you can reduce your carb intake (ALL COLOURS), you will struggle to lose weight.
Drop the porridge and apples for breakfast, try Bacon and eggs, perhaps some fried mushrooms.
Replace carbohydrate with protein and NATURAL fats, don't use vegetable oils etc. Cook with proper olive oil or lard, dripping and butter.
Simplistically eat only vegetables that grow above ground.
This may look counterintuative compared to what you've heard over the years, but it does work.
By switching to eating like this, your body enters a state called diatetic Kentosis, whereby it uses fats for fuel instead of sugar.
By eating low carb you minimise the Insulin levels in your body. Insulin is the hormone that causes the Intolerance which means a raise in blood sugar levels, as your cells won't accept the sugar easily, this causes fatigue and general lack of energy.
Your bodies defence to high sugar levels is increased urination, ie peeing some out, accompanied by thirst to replace lost water. And converting the sugar to fat, primarily Ectopic fat around your internal organs, which causes intolerance in them, then subcutaneous fat under the skin (weight gain). Now you can see how this works, you will realise you had a problem long before diagnosis.
When you reach a state of Ketosis you are essentially fat adapted, natures evolvement to survive times of low carbohydrate availability ie winter. Natures next bit of help is when a scarcity of food, it starts to burn it's own fat stores to supplement the diet.
BINGO this is when the fat can rapidly disappear, BUT don't overdo the calorie restriction too much, as that can kick in famine mode, where your body shuts down none essential functions to save energy, (this is most likely why dieters plateau). The calorie restriction has become the new normal, so no weight loss. Every few days have a day where you eat a little more, this keeps the body expecting more to come on the days you eat less, so it doesn't reduce your metabolism.
Have heart, don't worry, we all struggle at times, and until you can see the root of the problem, the chances of being successful are less. The extra weight is NOT the problem, it's a symptom of the problem.