Describe an occasion when you wasted your time?

Question: Describe an occasion when you wasted your time? 

One occasion when I wasted my time was when I tried to learn a new skill online. I signed up for a course that promised to teach me the basics of web development in a few weeks. However, the course was poorly designed and had many errors and outdated information. I spent hours trying to fix the bugs and follow the instructions, but I did not learn anything useful. I realized that I should have done more research before choosing a course and that I wasted my time and money on something that did not help me achieve my goal.