What is the key to success in life?
It’s up to you to know that everything Hashem has given you — how you react to them — is a test. All our character traits are also a test. If you utilize them properly to behave according to the guidance of Torah and you keep on thanking Hashem for them, then you will be successful in your life and be among the choicest of men. (Ohr Avigdor Shaar Avodas Elokim)