Today’s first glitch:
And what, exactly, is the abrupt change in idea (or ‘dramatic thing needing emphasis’) that em-dash is supposed to be indicating…? There isn’t one. Replace the em-dash with a comma.
Add a comma after the introductory phrase All my life.
“It’s really funny. All my life, I was ignored by everyone, but now I’m dead, people listen. I make sure of it.”