problem getting access to all my staff on my kindle fire

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http://android.stackexchange.com – please l unfortunately changed my Kindle settings to Parenting and l know find it difficult to use. l can't get access to all my files and documents, videos , internet and many more. l want to register for a new account but can't get access to my the main settings when l go to the MORE... it just open a page and says manage child settings ,set daily goals and others. l can't use it now ... please help how to get it re registerred (HowTos)