The striker had a torrid time at Stamford Bridge following his £50 million move from Liverpool, scoring just 20 league goals over three-and-a-half years before being sent out on loan to AC Milan last summer.
Torres failed to impress at San Siro and, after the Italian club bought him outright, they loaned him to Atletico Madrid where he is yet to score in nine Liga appearances but netted three in four Copa del Rey matches.
The Spain international has spoken out about his troubles in west London and thinks he has shaken the monkey off his back at the Vicente Calderon.
"The worst part of not playing is when you think you're prepared and ready to do it," Torres told El Pais.
"I tried to get minutes at Chelsea and seize opportunities, but things do not always go the best way, and can drag on for weeks or even years.
"It was like swimming with wet clothes on. Now I know how I am, and I'm fine. At the end those doubts about your quality eventually disappear."
Torres will be hoping to play a part in Atletico's attempt to overturn a 1-0 deficit at home to Bayer Leverkusen on Tuesday in their Champions League last-16 second leg.