I understand that you are disappointed. Did you see the FAQ sections where there is a Q on that topic with some advice. Also find the tread in this forum with the title Managing expectation which I think is full of insight.

I notice you talk about misery of fasting. My advice is first start the change in life-style by training your ability to fast. Each fasting day try to push the envelope so you can eventually fast 24 h. Once you get there, fasting is not a misery. I was miserable when starting but 2 month later it was no big deal.

I hope you do not give up yet. Let us all know how you are doing

Tell me about it! I do sympathise, Suegozza. Like yours, my weight loss has been very, very slow. By last week, after nearly six months on the Fast Diet I had only lost 4 kilos and on a couple of occasions I had put the whole lot back on overnight. Weighing in yesterday before starting a fast day I had lost 4 more kilos. Would you believe two of them had reappeared this morning! Still, that’s a loss of 2kg, so mustn’t grumble.
It sounds as though you are doing everything right in terms of both diet and exercise. It may be that you were already eating healthily before starting the diet and probably it was just a question of monitoring portions. I’m convinced that in cases such as this, including my own, the results are far less dramatic than for someone who has previously been stuffing themself with sugary, fatty things and suddenly switches to the good stuff.
It can be relatively easy to stick to 500/600 cal if you happen to like green leafy and other low calorie veg and lean protein,especially if you have the time and inclination to turn them into soup which seems much more filling than salad.
As I’m always telling myself, hang on in there. Although the weight and width are slow to change, you may find you have more energy and more stamina. I first noticed the difference when I (5’1″) found I could keep a steady pace with my 5’8″, long-legged, marathon-running niece without having to break into a trot.