United Kingdom, Jan. 28 -- Paris Hilton hasn't received "anything" from her parents since she turned 18.

The 44-year-old socialite admitted money equals happiness for her because she has "worked so hard" and following her traumatic teen years, when she has claimed she experienced "verbal, physical, emotional and psychological" torture whilst a student at Provo Canyon - a psychiatric youth residential facility - in Utah, she sees being successful as "freedom".

Asked if money means happiness, she told Us Weekly magazine: "It does because I've worked so hard, and success has always been a driving force for me. [After] going to those schools, I made a promise that I was going to become so successful that no one could ever tell me what to do...