Assess the level of the emotion sadness in the tweet provided. Use the following categories: 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.
Tweet: #depressed Today was bitter sweet watching all the kids go back to school made me really miss my babies. I'm so broke #backtoschool2017