It appears from the initial results that Justin Trudeau will be forming a minority government. This may seem disappointing to his supporters, but the likes of this have happened before.
His father Pierre received a minority plurality of seats in his second election in 1972, following on his glorious initial victory four years earlier.
So son is no worse off than father was. And less than two years later, Pierre called another election, after the NDP withdrew their confidence & supply support, and he won a majority again. So.