Knowledge isn't nearly enough. You also need some wisdom. Wisdom is different from knowledge. Knowledge is knowing how to accomplish something. But wisdom is knowing why you should.
Wisdom involves values.
It entails judgments about what's important or worthy for you to be doing. Wisdom requires self-knowledge. In order to make wise choices about your life's work, you will need to know something of who you are, and you will need to be able to imagine the kind of person you want to be. Gaining self-knowledge is hard work. In fact, you'll keep crashing into that character wall again and again until you finally realize it's there, and that you've either got to knock it down or figure out a way of getting over it.