I'm in my 50s and do similar exercise. I need to be on 1200 calories to loose weight. I loose weight slowly on that but don't feel hungry and can include the odd day when I have more. Generally though I'm strict. I make sure I eat plenty of protein. I don't snack apart from occasionally having a piece of fruit or something at 4 or 5. Otherwise it's three meals a day
Cauliflower rice is brilliant.
MFP is brilliant for dieting. I've always got to watch my protein intake. It's easy to eat to little.
I have magnum mini icecream bars in the freezer - they are tasty and only 160'ish. They probably should have any part in a healthy dieting diet but I enjoy them a lot.
It isnt possible to guess exactly how many calories you need to eat to loose weight so you should just do trial and error. Keep decreasing your calories until you start to loose weight. Take it slowly.
My day today. It's a bit short of fibre today tbh
Slimfast ( good protein) @ 200
Egg yolk, naked salad, brown seeded bread. @ 300
Fish roasted 200g, cauliflower rice, various veg, soy sauce and spices @ 400
One of those Scandinavian Skyr type yoghurts (90cal). 200g raspberries/ strawberries @ 160 all in
Left over calories for milk in coffee etc