Answer:
A. Since quarantine was announced, I felt various emotions that often conflicted each other. I obviously felt sad because I wasn't able to see my friends and family or go out whenever I wanted to; I felt scared about the current situation; I felt anxious because no one fully understood what was going on; but on the other hand, I also felt happy as I could stay indoors and relax, watch all the shows and movies I postponed for a long time, read many books, etc.
B. Quarantine has definitely impacted these emotions I felt - I started thinking about some things that I maybe wouldn't have thought about if it weren't for quarantine. I didn't use to be scared of going out but now I do sometimes because you can never know if someone has been infected.
C. Since the announcement of quarantine, like I wrote, many different emotions flooded my mind. They changed often, sometimes daily, and were definitely different than what I felt before quarantine. However, I think we shouldn't be too scared of quarantine and waste our time - it can be an opportunity for us to learn and improve ourselves instead of just sleeping the entire day.