A tense week

A tense week.....What it means? The week for add and drop subjects. It is the most difficult week for me and the other student in this University. I have to have a sign from the lecturer for the subject i want to add, and i have to take the sign of the lecturer, subject i want to drop. Even sometime, it become worse when the lecturers are outside doing another program. What should i do since there are only two weeks provided to settle all the problems. Maybe, we already planning it at the very early time to get rid from this problems, but problems always come. To have a sign from the lecturer already a problem, to settle it with the academic department another problem. When we at the front door of the Canselori, we can see a long line of student are waiting for us. It can make me more tense. But, this is the reality, I have to face it although it keep happen every semester.