Overconfidence is the main reason for failure. I think I have been doing this all the time, of course, no problem, but such confidence is not very suitable for all the scenes in these two days. One of the reasons is that you are slow to respond to changes in surrounding conditions. You need to be more resourceful. You'd better choose something that one person can accomplish in these two days, otherwise your persistence and stubbornness will probably affect everyone's pace.