So you've been recommended what's called a bulletproof coffee (no idea why it's called that!) - if you were doing Bootcamp (I don't think you are, but if you decide to join us) we don't recommend it, as it's really not very nutritious, and we prefer to eat real food.
On a low carb diet you should see a bigger, quicker loss than other diets because as well as losing water and (some) fat in the first week, you're also using up your glycogen stores. So you don't need any 'quick fixes' to get the weight moving, just switch to eating low carb.
You also haven't been eating much veg, which is important for nutrition, and I'd also recommend that you try to avoid artificial sweeteners as much as you can - so no more skinny syrup or Fanta Zero!
Basically thinking green veg, cauliflower mushrooms, meat, eggs cheese chicken, alpro no sugar plain yoghurt, and cream type diet
This is pretty much right - but make sure that your yoghurt is full fat - and just be aware that for some people dairy can be an issue. Only way you'll find out is trial and error though.
The electrolyte tablet is a good idea, as that will help you avoid carb flu. It also helps you with the water intake, which really is important.
How much do you weigh and how tall are you?