well buddy ! All you have to do is to follow the simple rules which can enable you to write more skillfully.
1. Remember to have 3 main points included in as essay; i) Introduction ii) Main body iii) Conclusion.
2. you should try to write something at least every day to more improve your skills.
3. you should read more books and have a know how of the current affairs and the international political arena.
4. expand your vocabulary and learn more and more idioms.
5. don't forget to keep good record of quotations.
6. essay must always be well organized and must impress the reader.
7. in the end you must have a good outline which will help you arrange your essay in order.