This is how I see with one glance whether my day will be balanced

In this picture, you can see my notebook with today's tasks. As you can see, I'm using different colors: blue for marketing, light brown/gold for making a living, red for administrative tasks that I want to get rid of as soon as possible, purple for studying/learning something and green for leisure. By using different colors I can see with one glance whether my day will be balanced. For example, if there is no green, I want to make sure I plan a break; if I see gold/brown, I may want to prioritize this task, etc. It has helped me to spend my days well for a long time now.