Evil people never believe that they are evil; rather, they believe that everyone else is evil. - Mark Manson

Much as the pain of touching a hot stove teaches you not to touch it again, the sadness of being alone teaches you not to do the things that made you feel so alone again. Emotions are simply biological signals designed to nudge you in the direction of beneficial change. Look,

Instead of striving for certainty, we should be in constant search of doubt: doubt about our own beliefs, doubt about our own feelings, doubt about what the future may hold for us unless we get out there and create it for ourselves. Instead of looking to be right all the time, we should be looking for how we’re wrong all the time. Because we are.

Many self-help gurus teach you new forms of denial and pump you up with exercises that feel good in the short term, while ignoring the underlying issue. Remember, nobody who is actually happy has to stand in front of a mirror and tell himself that he’s happy.