so that you will not be confused.
You need to have even just a few details or knowledge of each topic
so that you are able to write something about it.
It is better that you have an idea with each topic.
If you have an idea, then you are able to make something out of nothing.
Now that you have learned or read something about the hard topics,
assess yourself if you really learned something by writing down what you know about a topic.
If the topic is a story, you should know the what, when, where, who, why and how, of the topic.
As in what will happen, or what happened, when did it happen, where did it happen,
why did it happen, and how did it happen.
Read, research and write down something that is important about a topic.
Make conclusions about what you understand.
Next thing, you should study the one that interests you most.
And finally, the easiest topic for you.
The easiest is the last because you already have some background about it.
All you need to do is to review what you know and check if what you know is valid.
You need to know the 20 topics, you need to have at least a minimum knowledge about
each of the topics. You'll never know which topic or topics will be given to you.
And read again if you still don't understand.
It is better to read and understand a few than to read all of the topics and nothing is understood.
It is better to be prepared.
If the topics are related to each other, it will be easier, just find the main idea..