ZE: Is there any way to sustain emotional self-expression?
I think most people do it anyway because most folks seem to be pretty emotional. They go around expressing their emotions all the time anyway, unless you are getting at something different from quotidian emotionalizing here.
For me, to sustain it, I would have to keep writing because writing expresses my emotions best.
Humor is a good way to express emotions. As long as you are communicating with humans, you can make humorous comments that express emotion very well.
It also helps to be a systematizing thinker.
The more you can systematize, the more wisdom you obtain, and the best emotional expression is in the form of wisdom.
And then humor.