A designer has an intention to change the world in some way. Maybe they intend to help people be more productive, more delighted, more comfortable, or better entertained. When they are designing, they are making their intention real in the world. They render their intent.
When you do get started, you can always turn the task into a game. How can you achieve your task more efficiently? How can you change the steps of the process and still produce the same result? Bringing mindfulness to a dreaded task gives you a fresh perspective. The task itself might not be fun, but the game can be.