Eleven boot camp is low carb high fat BUT bullet proof coffee is just fat.
3 regular black coffees a day I don't think is excessive but 3 bullet proof coffees is a lot of fat without any other real nutrition. I sometimes have a BPC if I'm feeling dodgy and can't face food but other wise I have a mug of coffee with a little cream or black. I know a lot of people who fat fast and have a BPC instead of breakfast so that way they are keeping their insulin super steady but not feeling hungry but the way you are doing it you are having the BPC and breakfast so it sound like as Biwi says you are eating 'little and often' instead of a filling meal 3 times a day.
early - 2 bp coffees why 2? I would be no longer hungry after 1. If you are hungry maybe eat something with it?
late breakfast - tomatoes, olives, blackberries, natural yoghurt
could be carby depending on amounts of tomatoes and berries? If I was getting hungry I would suspect it was too much in the way of carbs and cut back on those and increase the fatty bits
early lunch - salad leaves with feta feta and salad is a good option but maybe add in a fatty dressing and have olives and avocado with it so you don't get hungry later and need to snack
snack - guacomole, olives, celery, bp coffee
dinner - rocket, courgetti, prawns, cucumber, halloumi sounds yummy but did you add a dressing or sauce? Maybe some butter on the courgettie or mayo on the prawns
Cheese has fat but prawns are not so you need to add it in.