There has been a lot written in this forum about managing nfds, so do have a read around and check out the LEARN pages. As expected, people manage these days in different ways. Some eat exactly the same as they did before starting 5:2, but most look to make some changes. Low carb / high fat is a popular choice, and certainly avoiding white foods and added sugar products throughout the day might help reduce the hunger in the evening. Eat mainly whole foods, especially veggies, and good sources of protein and fat. Find activities to distract you during the evening - eg, as mentioned above, find things to occupy your hands. If you are genuinely hungry, perhaps try having a few nuts or some cheese.
What do you think your average daily calorie requirement is? Is it 1800cal, or more? If it is a lot more, then keeping to under 1800 may be difficult.
Time may also help with reducing the hunger feelings on nfds. But if genuine hunger is persistent, it may be worth taking a week off from fasting, before returning to it.
Good luck and best wishes, and keep us posted on your experiences.