Just 11 days ago, I created a 'torrent' blog. I was unaware that it is prohibited by Google TOS. Fortunately, my adsense account is still valid. If I delete it now, will I be able to save my account? Can I inform adsense/ google that I'm sorry or what?
I would suggest deleting everything right now, and just going on like nothing ever happened. Don't message/contact them unless you actually do get banned from adsense, and explain your situation. But don't send them a message telling them that you are guilty for not following their terms. There's no need to give them a reason to ban you if they don't know anything yet.
I agree if you email them then they will definitely look into your account. They are a big company and as long as you quickly get back to there terms then you should be ok but if they catch it then you will not be ok.
Forget the whole thing and fix up good this time. No need to contact them. I did not know that writing about torrent is violation of TOS.