The beauty of low carb high fat, is that you are giving your body what we evolved to eat.
Base all your meals on non lean meat, eggs, cheese, above ground vegetables.
Use butter, lard and dripping to cook with.
IGNORE everything you ever learnt was healthy to eat.
Don't eat potatoes, bread, rice and pasta, or fruit, if you must have some, eat berries with lashings of cream.
Eat enough until you don't feel hunger, ignore calories, you will find yourself missing meals, as you just don't need them. This is when the weight loss really takes off. NO hunger as well. Due to missing meals, your calorie intake drops significantly, but due to dietary ketosis, your body supplements with body fat, so you don't realise.
If you find you have to snack, eat more at mealtimes so that that you don't need them.
DON'T eat anything that is not real food, if anything is added to make it, it's not real.
It does become expensive, as you WILL have to replace all your clothes.