1)
How will you do like I did?
1.
Rashi #1: You will not conduct Aveilus, for no one will console you. There is no one who will not be an Avel (Malbim - the plague is a Mashal for this). Aveilus is only in a place of consolers.
2.
Rashi #2: You will fear to cry in front of the Kasdim, that you are amidst them.