One sequence. But I had serious, severe depression and it was the only thing that was purported to help.

Not saying yours isn't severe or anything like that.

This was also years ago and the recommendations maybe have changed.

I had ECT in 2012.

So maybe they've changed the recommendations on what is supposed to help the most with the least amount of side effects. 6-12 should be enough. I guess if they don't see progress soon enough they could theoretically extend your treatment of ECT. Anyway, best of luck.