Ask HN: How do you handle a Job rejection?

Hello HN,

Curious and looking for an understanding as to how you handle job rejections. Now I understand straightaway getting rejected as a bad fit / failing the first hurdle (usually some sort of a test / coding challenge), but I am looking for reading through your experiences on how after appearing for $N rounds and then not getting a callback or things not working out at a later / final stage.

Does it affect you? If not, how? Can't help but think it does / it would..