You've got to enjoy the game to officiate it. If you don't enjoy it, then re-evaluate why you're officiating.
There is absolutely nothing wrong with Canadian football.
One high school league in my area plays with 4 downs. When switching between the 2 leagues, you can see the game slow down. Having 3 downs speeds up the game, makes it more challenging and way more interesting.
And Mike, you should've seen the new poem they came out with this year, "Mr. Touch Referee"