OK - don't panic! One day at a time with this, otherwise it can feel like too much (and like a punishment, and it's not meant to be that, not at all!).
Menu planning is key!
As you say, keep it simple. Eat the stuff you normally eat (cos who has time to cook different meals, I bloody don't), but have a bash at working out what they roughly come to. It's impossible to count everything, so just count what you can. And yes, that includes all fruit and veg!
My day is generally this:
BF: I x toasted pitta bread with 2 x eggs (301 cals)
LUNCH: Jacket spud and a small tin of sugar free beans (460)
DINNER: Normally a smaller portion of what the family have and I log as 500 cals. Or I buy a ready meal if we are eating at different times or as I mentioned, I can't trust myself to not scarf a massive portion!).
This takes me to 1200 cals. If I am hungry I'll have a banana or an instant 60 cal soup, and I like those 10 cal jelly pots. that gives me a 100 cal snack allowance - absolutely essential some days, like today, as taking DS to cinema and don't want to eat any chocolate!
Friday's calories - no - I just complete my diary in the usual way. I have found that I am not binging in the usual way at all. Not because I am amazing, but because I think massively reducing my wine inatke has helped the cravings; but this took a few weeks.
Not everyday is easy; I have occasionally had a slice of pizza rather than make a healthier tea because I'm tired, that's life. Or a double decker when it's that time of the month.
So for example I had my usual breakfast but I know I'll be starving when I get back from the cinema, so will have another poitta bread but with ham and sald stuffed inside. Dinner is roast chicken etc - I'll have some white meat and lots of steamed veg, but no roast pots, gravy etc. So I'm still eating, just a bit more carefully? And I'm making that meal anyway!
I think the thing for me was just realising that it was ok if it took me 6 months. so long as I kept going!
It's really not much of a plan - but by all means steal it! And I promise, I totally understand how scary this all feels, but it really is possible!