A simple topic; Simple topics are simple topics. Don't think too complicated. Just follow the routine. Don't worry too much yet. Time is of the essence.
A topic that requires skill; Don't stand still, see the topic clearly and find the right breakthrough. Remember, as long as you take the right first step, you will basically succeed more than half, hehe.
There are not many big topics; However, it is necessary to have extensive and solid basic knowledge, and it is very important to examine the questions. Start with the key points and don't ignore the others.
Finally, I need some luck. Good luck again.