The anxiety about cravings is so hard. For a long time, on forums, people told me to work steps while craving--which did not really help me.
There are things I love to do that take me away from minor cravings. But when it is really bad, I have friends I can talk to. This was something I was always told was bad recovery, but it connects me to normal life and reminds me of what really matters to me. I think calling non-addict friends--the people you really care about--is one of the strongest bulwarks against cravings.
But the worry is still there. It should be. This is dangerous stuff. But it does get better.