If this were me, I'd be super careful about cheat meals. In my personal experience, I was never overweight, but I found that once I cut out my 1-2x/week cheat meals, my leanness and performance in the gym went through the roof.
It might be a cool motivational opportunity (having a real clear, solid goal ahead of you) to make your food intake completely, 100% purposeful. See if you can replace the cheat meals with some other activity that will give you a similar little shot of reward hormones but also helps you along your path*(think massage, sex, etc.)
Also — you haven't said anything about where you're getting your macronutrients from. If you haven't already, you'll want to make sure absolutey none of your food is pro-inflammatory (i.e. grains/especially wheat, legumes/especially soy, dairy, sugar, and ddddefinitely avoid vegetable oils).
Also, you haven't mentioned lifestyle factors. Getting as much bare-skin sun exposure as possible + stress reduction + tons of sleep will likely be helpful.
Also want to offer my salute for your work so far, getting rid of 40 excess kg is bad ass