May I recommend changing over from a high-carb to a low-carb (quasi-keto)(as in, all-keto is very tough and may not be achievable by anyone except the formidably dedicated and self-controlled!), but to do so in the following way (I am pre-D at the moment, and trying to stay that way, as in, not tip over into T2 and even, who knows, reverse out of pre-D completly??)
Giving up carbs is hard, we all know that, and as you say, carbs themselves fuel the pernicious 'hunger/full/hunger/full' cycle we get trapped in.
But, as we also know, going (more) keto breaks that cycle - most folk here who report on going (more) keto say their hunger pangs diminish, and the feeling of generally feeling 'OK-full' (as oposed to 'bloated full'!), sated, perhaps, rather than bloated?
However, it can be hard to go cold turkey on carbs (or even cool turkey!), so why not try and go keto 'as well'??? The idea is that you don't cut down on your carbs initially, you just add a lot more protein and veg fibre (I'm going to say if you are overweight now, then don't eat any more fat than you already do)(when you are off carbs, or into much lower carbs, then you can allow more fat anyway along with the protein and veg fibre)
So the idea is - keep on with carbs (starch and sugar), but eat more protein and fibre as well. The latter will fill you up in a 'healthy' way (sated not bloated), and you should find (I hope!) that your craving for your current too-high level of carb should start to diminish. You just won't feel as deprived as you do now when you've used up the latest round of carb intake.
That's one way to shift into lower-carb/more keto.
Another way is to target one source of carb and cut it out. The obvious one for you would be the cola - there is NOTHING we consume that is MORE POINTLESS than cola. It is the world's most USELESS 'foodstuff' and should be banned by law. It's just utter rubbish - all those fizzy junk drinks are rubbish.
It isn't easy shifting from bad eating to good eating, but for many the route that works best is the gradual one.
It's hard to believe that protein and fibre can stop you feeling hungry, ie, that if you don't eat starch you won't feel hungry. How can a meal fill you up if there is no starch???!!!! But give it a go - have a meal which is protein and fibre and see how you feel after half an hour.
Finally, see if you can start to view your carb allowance as your 'treat' not your 'food'. For me, my 'food' (nourishment) is protein and fibre - that's what fills me up and fuels me. Then my carb allowance is my 'treat' - either in the form of fruit (when I'm being 'good'!) or 'pudding' of some sort (when I'm lapsing!). I don't eat carbs for fuel, but for fun.
All the best - the good thing is you are recognising you have to 'do something' and you are preparing to do it.
'De-addicting' from carbs isn't easy, but it can be done. Good luck!