Using the tweet "I'm so sorry\nfor so many things\nI never say it\nmy burden to bear\nSo tired of talking\neven dreams grow stale\nMadness a relief\nto my ?", determine how much sadness is shown. The categories 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.