I am so stupid or I need more sleeping hours!!!!

This morning, I got into a bus as usual. The bus stopped at most of stops. But at South Brisbane, the Exit of busway. The bus turned right, not the usual one, left. Oooooh! I got into a wrong bus. That is 136, not my 133. End up, I was at UQ. That needs more than 30 mins getting to my office and I changed to bus again at city. No way, I called a taxi. But I have spent 20 mins for waiting. Because I waited the library of UQ. There are a number of libraries at UQ. The taxi driver spent a 15 mins to find me. …… Finally, I am 45 mins late for work!