"Don't" is indeed from "don't center on your anxiety."
"Be a" is from "greed can be a powerful ally."
"Coward" is from "these Federation types are cowards."
fishman, I'm not crossfading the words. I can try it out, but I think the issue isn't the choppiness so much as the way the words are pronounced, as brash said. I'm not sure it can be fixed up much more.
I considered adding a subtitle, but that just seemed odd.