I think what impacted how the U.S did in the war was that they had only a little bit of men.They had fewer than 7000 troops.Also those troops were poorly trained.They also underestimated the strength of the British and their Native American allies.
They signed a peace treaty on December 24, 1814, in Ghent, Belgium. It did not change any existing borders though.Nothing was mentioned about the impressment of sailors, but with Napoleon's defeat, neutral rights was no longer an issue.
The three conflicts resulted in increased funding of the peaceful military, better coastal defenses a more secure western frontier and a final confirmation of the revolution outcome.The power of the Indian nation of the old northwest and old southwest was decisively broken opening the way for the white settlement across a broad front. The war also produced a new national symbol.