The best approach to answering this question is to prepare specific examples of your successes and judge those factors you contributed to your achievements.
You can say " I like to maintain a consistent level of productivity and take both my successes and failures hand in hand. I try to learn both and apply that knowledge to future situations".
You can mention any situation where you came up with any strategies that contributed to your success. You can also discuss some new targets where you have come up with a fresh solution with the help of your team members.
IMPORTANT: Try not to make your response all about you. If you are being hired for a job, where you are part of a team or management, then it is a good idea to give credit to the people who were helping you succeed. Sharing the credit for your successes will show the interviewer how you will be able to fit in when you are in a job that involves working well with others.