I do not trust self-discipline. I spent 4 years doing a PhD looking at whether motivation can account for health behaviour change and a further 7 years trying to design and evaluate interventions using motivational models. Never been a good model in any of the trials I've worked on. It's true, if you can generate masses change in desire to achieve a goal, it can have a very small effect on health behaviour (there was a big meta-analysis done a while back). In contrast, using simple "If-Then" plans to generate new habits has a large effect on health behaviour. Note, boab doesn't want to stop eating cake, she wants to stop wanting to eat cake. Cake is lovely - how are you going to make her stop to want to eat it, particularly when cake is lovely now, whereas weight loss is boring now, and not particularly exciting later.
Apples and water work for me as an appetite supressant. Scoff the apple and drink a pint of water. I think the pectin means it makes a big gloopy blob in your belly that makes you full. Make the plan "If I am hungry, then I will eat an apple and drink a pint of water"
Ban yourself from baking caek. I put on 3kilos at the Seething 600, and it was all your fault. I'm not allowed alcohol until I hit my weight goal. When I do, I fully intend to manage my weight with the strict application of barley wine. Until then, nada. Make the plan "If I weight more than x, then I cannot bake cake".
Jam is like crack for me. I can eat half a jar with just a spoon. I'm not allowed more than 1 teaspoon a day and only on toast for breakfast.
Get absorbed in something. Take up arguing with right wing twats on a fox message board, or something. Idle minds need caek.
You have an android phone, right? install myfitnesspal (barcode scan the image below) and stick to using it obsessively. Ignore what it tells you you can eat mind - I've had to multiply the food allowance I earn through riding by .6 to make the numbers work. I believe long distance riders are too efficient for the calorie burn estimates for cycling.