Empathy, on the other hand, allows us to ‘try to understand the emotions of others and try to put ourselves in their shoes’.
This is where I have an issue - because while you say "try" that isn't actually empathy by definition or the way people evaluate their own. they believe they have adequately understood and shared the feeling of another. I call bullshit on that.
It is easy to give opinions about others, but about oneself?
It depends on the person and how or if they reflect upon their own thoughts and actions in the world honestly or not.