Should I file my 2008 and 2009 taxes or not?

So I am 20 yrs old and I have never filed my taxes. I have been working since I was 16. I have a friend who is going to show me how to file on-line for my 2010 taxes and I know I will be filing my 2011 taxes in Feb of 2012. However, I am unsure whether or not my taxes ever got filed for 2008 or 2009 or not... show more So I am 20 yrs old and I have never filed my taxes. I have been working since I was 16. I have a friend who is going to show me how to file on-line for my 2010 taxes and I know I will be filing my 2011 taxes in Feb of 2012. However, I am unsure whether or not my taxes ever got filed for 2008 or 2009 or not due to I am not on speaking terms with my parents. I do not believe they did file for me as I believe they have never filed taxes themselves. SO my question is should I file m 2008 and 2009 taxes or not? If I should then what would be the best web site to use? To file my 2010 and 2011 taxes I am going to use the www.taxactonline.com website as that is the web site that he has been using for years and loves it. Thanks in advance for your help. serious answers only.
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