When handling such discussive essays, just follow the basic structure and you won't get stuck:-
1. Define/explain key words,eg in your example, define "good", "government", "popular/unpopular"
2. Explain what the pertinent issues of your topic are and your stand, if any
3. Conclusion - reiterate your stand -agree/diagree with the motion
For every point made, illustrate with examples and/or state your authority
Keep it simple mah...... You are not writing a narrative essay for which an intricate plot might score you marks!
It is how logical and eloquently you express your ideas and communicate to the reader that score you the marks! Good luck!