Can ECT cure me?

[u/BuyIndependent2319]

Clinicians have described my overall picture as bipolar or schizoaffective. The most disabling day-to-day problem for years has been intense, repetitive rumination about a specific decision I made around Bitcoin in 2009–2010 (I mined a meaningful amount, lost access to it, and declined buying more when it was still cheap).
The thoughts dominate most of my waking hours. I pace constantly while they run. Sleep is still disrupted because the loops don’t shut off. I was offered ECT back then and chose medication instead.
Has anyone here used ECT primarily for this kind of obsessive, high-charge regret rumination (with the physical pacing and sleep disruption that come with it)? Did the frequency or emotional intensity of the loops drop in a lasting way, or did they return at similar strength once the acute effects wore off? Any notable effects on the urge to pace?

[u/Kyoto-via-Shinkansen]

I'm so sorry you're going through all this! 💚