When an authority figure tells you to do something today, do it. Now is not the time to get defensive or ask why: now is the time to be more obedient. Trust your boss. It's important to question authority figures in order to be valuable to them, but today is not the day for major doubt. The people around you know more than you do, which is probably why they are asking you to take on more responsibilities. The only way to truly comprehend your abilities is to use them.