Matthew Bates begins his book, Salvation by Allegiance Alone with a chapter titled “Faith Is Not.” Among other things, it is not wishful thinking.
The point is that real biblical faith is not a general positive mindset or a blind optimism but is directed toward a defined object— and it is the trustworthiness of the object that sources and fixes faith’s genuineness. So if we want to grow in faith, we should study and contemplate God’s extraordinary reliability. — Matthew Bates 1
In my experience, the best way to “study and contemplate God’s extraordinary reliability” is to immerse oneself in the stories and story of the Bible.
1 Matthew W. Bates, Salvation by Allegiance Alone: Rethinking Faith, Works, and the Gospel of Jesus the King (Grand Rapids, MI: Baker Academic, a Division of Baker Publishing Group, 2017), 23-24.