Fear of Failure

While preparing to preach on February 17th, I've taken to reading various resources on the methodology of preaching. Needless to say, every time I read something I feel as though I'm not adequately prepared. Which leads to reading some more, and then having doubts, and then reading more, and so on and so forth.
Then it hit me one day, I can read every book, listen to every podcast, talk to every pastor, but unless I seek the guidance of the Holy Spirit I will be doomed for failure.
Before each reading, I've found it necessary to seek the guidance of the Holy Spirit. we can prepare for something as long and as hard as we can, but unless we can prayerfully seek guidance, we will sound foolish. And the message that was needed to be conveyed will be lost in our sin of pride.