... And applying it in a constructive way, without over-doing it?

For instance, when you ask someone for advice about a relationship issue. You’re venting your concerns about how someone you’re dating hasn’t texted you in [arbitrary amount of time]. 

You ask your friend for support/thoughts and then they’re like “Oh my goood, *dump hiiiim*!!!”, and now you question your entire existence and relationship with this person you have a problem with, because while your friend might be right, they could also very well... be wrong. 

And you don’t know which one it is, but now it’s stuck in your head that this guy is no good, and suddenly you see all his actions through this lens of negativity. Just because a friend told you their unfiltered opinion which doesn’t even really matter at the end of the day.