Chairman????

I do not believe it, how did I become chairman? Well, I do not quite like the position. Although I do not like it, I know that I cannot quit but I must put in effort in managing the class. I was not prepared at all to be the chairman, but I just wished to be a treasurer. As for now, I am new to the position and I may not do things correctly so classmates, please correct me if I am wrong, thank you!