That is up to you.

It should change over time.

In my youth I was driven by the desire for success.

The older I get the more I am driven by the fear of failure.

If the allure of success is losing its ability to drive you.

Make the fear of failure larger.

To do this make your goals public knowledge or at least public to those that you care about failing in front of.

Find the balance.

Run towards your success and away from your fears at whatever ratio is best for you in your current situation.

Thank me later.