Have you considered switching to tea?
I have, in fact I bought tea both regular and decaf but I haven't drank it in a while. I seem to forget I have it and buy pop instead.
I have had 99 oz of pop today.
Replace some of that pop with carbonated water.... either plain or with flavoring. It will still give you that "burn" you've become addicted to and make you burp (which is also probably so routine now that you would feel weird if you weren't doing it).
Try drinking milk with your meals.
And at least 4 times a day.. make a point to walk to the sink, fill up a tall glass with water, and drink the whole thing while you're standing there.
If you do these things, your pop intake will decrease markedly.