Sorry, it was a stalemate. We went into the war with conquest of Canada as a, possibly the, primary goal. We obviously failed in that. The war ended with status quo pro ante as the terms, which is pretty much the definition of stalemate.
For what you say to have occurred, it would have required America to lose and be invaded and conquered.
Madison and Congress entered the war with the goal of “conquering Canada?”
Is that how they teach it in Canada?
The question of stalemate would be whether the Brits returned to seizing and impressing Americans and ships on the high sea as they were doing before the war. if not then a victory was achieved