>> What I posted is what I have personally found to be the most useful advice in overcoming self-destructive mental habits
I'm glad a one-time, one-line quip worked for you, but in my experience, positive mental habits are built over time, through support and continuous practice.
I apologize for over-responding, but let me attempt to be more clear:
If you are responding to people's problems with common one-liners, it can be interpreted as belittling someone. It could be interpreted as an attempt to over-simplify or attempt to make them feel they are "inferior" to see and solve their issues, when their issues are to them, much larger than a random one-line quip.
The OP was asking for advice dealing with negative emotions. I gave what I consider to be the best advice for dealing with negative emotions. Just because something is a "one-liner" doesn't mean it isn't also a deep truth about human psychology. If you interpret what I wrote as belittling them or trying to make them feel inferior, all I can say is I disagree with you, because I know what my motives were in responding.
What I posted is what I have personally found to be the most useful advice in overcoming self-destructive mental habits.