Dear Queenie,
How do you deal with someone who is always giving you unwanted advice and telling you how you should be doing things, even though you never asked for their opinion?—Insulted
Dear Insulted,
It depends. If it is your mother-in-law, for example, try to be patient. Do not argue, just nod, agree, and then do what you prefer – although you might give the advice some consideration before you decide to ignore it.
Otherwise, just ignore the advice completely. If it is an e-mail, delete it without even reading it, or ignore the parts that are insulting. If it is in a conversation, change the subject as quickly as you can.