Which are outcomes of the War of 1812?

the United States gave up its demands to end impressment, while on the other hand Britain promised to leave Canada’s borders unchanged and abandon efforts to create an Indian state in the Northwest. The war’s outcome boosted national self-confidence and encouraged the growing spirit of American expansionism that would shape the better part of the United States later on.

Explanation:

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.