But - and it's a mahoosive but - the whole point of low carbing is that it is a way of eating that curbs your appetite and satiates you.
You can eat lovely, satisfying food without having to weigh or count calories. And you will find, once you're past the first 3-4 days, that this stops you completely from obsessing about food. It is hugely liberating to find that you're not starting to gnaw your own limbs off at around 11.00 am every morning, and can get quite happily through to or even beyond lunch without having to stuff something (high carby) into your mouth.
But if you haven't read any of the books (sorry - I'm not trying to have a go here, honestly!
), then I would guess that you have been inadequately prepared for this diet - practically as well as emotionally.
Low carbing isn't easy on the practical front - especially if you're out and about during the day. You have to plan for it, which means a bit of meal planning, possibly - but certainly you have to know that you have easy access to the right kind of food. (And also make it easier if you can by getting rid of too-tempting, high carb stuff)
The first few days/first week can be hard - you are, essentially, going through a carb withdrawal, and so you need to be prepared for that to happen as well.
But ultimately, you have to decide if you really want to do this. Read Briffa's book here, and it will explain to you why low carb is a much healthier way to eat - i.e. it's not just about losing weight, even though that might be your initial motivation - and read The Idiot Proof diet for the emotional side of things.
I hope this helps a little!