- very busy work when I reached the office, I didn't have time to message my friends. they were using Slack during work, so I have no reasons to use WhatsApp and Discord
- under high pressure because I was solely responsible for a business task. they did what I advised even I was just a part-time staff. so if it failed, I felt I damaged the company. but I reckon I feel more contribution there than the full-time job I am having now.
- it is not just an office work, I also went around different places