I was told going in that it was fairly common to need a second or more ablation to eventually cure the a fib. How long should you wait? That is a decision you need to make with your doctor. The important issue you raise is whether to try again? That is such a personal decision, but I think most of us on this forum who have had similar experiences would recommend that you try again.
I just had my second Pulmonary Vein Isolation (PVI) ablation a week ago. I don't think I will personally do another one - am in AF now which is very frustrating, but I know I can't judge the outcome yet... I need to give it some more time.
I have had three ablations since June and they still haven't fixed my VT entirely. I think multiple ablations are fairly common and nothing to worry about. They usually say three months between ablations but I have had mine approximately 6-8 weeks apart from each other. I have groins of steel now, lol.
I have read that more than one ablation is common. I have no experience myself, but I do have AFib and my doctor, the EP specialist, doesn't recommend ablation for my AFig, I don't know why other than the fact that the worst symptom I have from my AFib is a shortness of breath ... no more running or jogging. In other words, my AFib isn't particularly unpleasant symptom-wise and no more a threat to my life than the fact that I keep getting older.