Your personality is bynature. Therefore, it is so difficult to make it better. but if you can’t learn to control your temper, you sometime regret what kind of sityation. For example, the situation that fight with your friend because trivial trouble. I had a friend who fight with me because trivial trouble. So until now a day, i had no connection to him. But these days i thought that i should have apologized first. After all it might be a good idea to think about the other person’s point of view and talk about your opinion.