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New year, new attitude for Kim Kardashian!

The newly single reality star, 31, joined her family -- Kourtney, Khloe and Rob Kardashian plus mom Kris Jenner -- at Thursday night's opening of the Kardashian Khaos boutique at the Mirage Hotel and Casino in Las Vegas, and remained upbeat despite a rough 2011.

"I'm really thinking that 2011 was a lot of learning lessons," Kim told Us of the past 12 months, which saw her get engaged, married and split from Kris Humphries. '2012, I'm just excited for the New Year and the new me.”

Despite the sad, fast end of her marriage to Humphries, 26, the superstar insisted she hasn't ruled out getting married for a third time. "I believe in love…always," she said.

But she's not on the prowl for a new man just yet. "I'm not looking," she noted.