We all learn with fasting that we don’t really feel hungry but instead we feel the NEED to eat, as in a enforced habit.
Breaking a habit it is really hard, but a good advice is to try and substitute it with something else that will also give you pleasure (like a good time with tea instead of food)… what really works for me is changing my surroundings, i get really hungry and focused on food a lot if i am at home, but if i go out, the cravings stops! BUT the best advice is persistence! Keep trying and trying, and focusing on what you want, and you subconscious will catch up and you will have more will power!
Now, working out has nothing to do with feeling hunger or the need to eat, it is a thought reinforced habit, we all think that if we don’t eat as soon as possible after working out, we will be doing bad for our bodies, and that belief triggers hunger! But you can stay long periods of time without eating, even while working out, and you won’t hurt your growth progress.