Vanity pounds - try 6:1?

HM2206

I have those last 6 pounds to lose until I am back at the weight I used to be. Everyone keeps saying that you need to be patient with the last ones, but I feel like I have been and it's not working...

My TDEE is estimated to 1760, which is quite low (I think). I exercise as much as I can do afford some extra calories, but it just takes so much to make me full. I try to make room for a treat in the evening to not go crazy, but then I end up going to bed hungry.

Today I went to the gym in the morning, and I have been hungry for the rest of the day. I had a protein bar, some whole grain bread with avocado, high protein yogurt, half a mango and a bowl of lean chicken with boiled quinoa and sweet potato. Most of my days contain a lot of protein, some healthy fats and 'good' carbs. I'd like a treat in the evening, but I'm going to go over...

Now I am thinking - should I try a 6:1 and fast on Sundays? Maybe this is the way to do the vanity pounds?

Does anyone have experience with this?