Tao

To achieve your goal is to utilize Tao. You utilize Tao to achieve success.
To utilize Tao, you need to know Tao.

Tao exists objectively and it always exists. It doesn't exist in books, it doesn't exist in articles, it doesn't exist in someone's mouth. It exists in this objective world. The world is a result of Tao and human activities, humans can choose what to do, but it is Tao which determines what humans achieve.

To know Tao, you need to observe Tao, see Tao with your heart. Your mind needs not to be disturbed by your emotions, because Tao is an objective existence, it doesn't care whether you feel upset or not, but when you feel upset, you lose your ability to see Tao.

 Accept everything. What upsets you, accept it. Accept what upsets you, so the thing that upsets you will lose its power(to upset you) after you accept it.

Think big, think long-term, think broadly, look at the big picture, trace to the root of the cause. Some are just symptoms, you need to trace to the root. Some are just derived from other things. You need to find the root which causes other things. Say, D is derived from C, C is caused by B, B is caused by A. You need to find A.