Replying to Torrent Experts I need some help

I have downloaded torrents for about 5-6 months and the other day I got an email from my internet service provider saying they saw i downloaded an illegal file and they had the name of the file and my IP address and everything, they said to stop or else. After using torrents I dont want to go back to youtube converting so is there anything i can do to continue without being caught? I used Utorrent and Torrentz.eu to find torrents