2.) Get moving.
When we are sad many times we like to curl up in a ball and be all by ourselves.
However, sometimes this only provides an environment for our feelings to fester and grow out of control. Not only does a little physical activity help to clear our mind, it also helps to increase blood flow to help us feel physically better as well.
From personal experience I can tell you a little exercise goes a long way. No need to run a 5k. A simple walk around the neighborhood might provide more relief than you think.