Judging from the way everyone makes drawings, when you choose a tool, you may be very clear in your mind about what you want and what you don't want, which part is more suitable for your heart, and which part you can't bear to part with. When you are constantly hesitating and making a decision, the choice has been completed. It's just that the tool is a tool. If you make a mistake, you can start over. It has the option of returning to the previous step, but what about the others?