@nadanoel Depends on you and your EP.

How you feel. How awful. An EP can't fix an electrical disorder. They can control it...almost always, one way or another, including down to brass tacks....a pacemaker. If you are well and truly miserable when fibrillating, let them know. They do want to help........................but........

What else going on in you makes you a poor risk for an ablation? Any other severe limitations, comorbidities? Is your heart otherwise in good shape? If there are some structural problems, such as mitral valve prolapse or severe atherosclerosis? Chances are good he/she will want those taken care of first....if they can be fixed. In my case, it was sleep apnea, and he was very careful to test me on how well I was dealing with CPAP therapy. Even so, despite my enthusiastic and positive report on that account, he still wanted an MRI and an angiogram to rule out ischemia. Both had good results.

How much you have learned about your condition and what can be done. Tells them you are motivated to succeed.

But the EP, him/herself, has to be sufficiently skilled and experienced to KNOW they can take a good crack at breaking your fibrillation via catheter ablation. So, sometimes who that person is matters a great deal. If you're told no, ask another....one who deals routinely with complex cases.