how do i creat i have good moral character for U.S. citizen ship?

You do not create good moral character. Good moral character is determined by consideration of several factors. You can find a list of conduct that bars a finding of good moral character at http://myattorneyusa.com/conditional-bars-to-establishing-good-moral-character-gmc-for-acts-in-statutory-period. You can read more about naturalization at http://myattorneyusa.com/how-to-get-naturalized-in-the-united-states.