Thank you for this post and all the advice you gave my dear friend, always keep in mind that if you don't settle and control your nerves on your own, the world will teach you the hard way, unfortunately.
Believe me, your nerves will get tired at a critical moment if you devote them to trivial things. Only when you are in a situation of tension or impatience, remember that you want to change this situation, and with your conscious control of the situation little by little you will solve the problem...