First of all, you should think twice before you act. For example, when traveling, you must first decide the destination and route: when you give a speech on stage, you must first prepare your speech. Learn to guide yourself before you do something, and often ask yourself such questions: "Why do you want to do it? How come? What results do you hope? How to treat it? " Moreover, it is necessary to give specific answers and write them on paper, so that the purpose is clear, the words and deeds are consistent, and the means are specific.
The second is to ask yourself to do things from beginning to end. We can take some measures to "temper" our impetuous psychology. For example, practicing calligraphy, untying knots, playing chess, etc. It helps to cultivate our patience and resilience.
Also, learn to control your restless emotions. For example, when doing things, you can use language to hint at yourself, "You can't eat hot tofu if you are impatient", "Don't look at other people's mountains, you will accomplish nothing" and "Persistence is victory".