Given the emotion sadness and the tweet "Shooting more than ever, making more mistakes than ever but I jumped in the pool of sharks a long time ago.  #relentless *#resilient", classify the intensity of the emotion displayed in the tweet. The classification options are: 0: no sadness can be inferred, 1: low amount of sadness can be inferred, 2: moderate amount of sadness can be inferred, 3: high amount of sadness can be inferred.