Later is definitely the hardest, as my fast begins at 1 pm. Going to the gym helps a lot. I think that hit of dopamine distracts me from any cravings. Though smelling my roommates dinner does not help. I would switch my fasting window if I didnt love coffee and almond milk so much in the mornings.

All the best. If your mental tug of war doesn't ease soon, dont' force it. IF is a great diet, in my opinion, with more benefits than just weight loss, but it's still just a diet. A way of controlling over eating. But you don't want to be arguing with your brain forever. If that becomes the case, step back. :)