Did the writers of the Declaration of Independence accomplish their goals (Did we get our independence and the new government we wrote about) ?

Yes, The Declaration was not only legalistic, but practical too. Americans hoped to get financial or military support from other countries that were traditional enemies of the British. However, these legal and pragmatic purposes, which make up the bulk of the actual document, are not why the Declaration is remembered today as a foremost expression of the ideals of the Revolution.