When you study classic books on preaching there is a phrase you find called: Truth through personality.
What this means is that we all have the same Truth and that Truth is preached through our individual personality. This is why you see different styles and emphases of preaching.
In other words preachers are not drones. Our great God and Savior made us with different personalities and different theological emphases which is manifest in our preaching.
What’s the point?
#1 Don’t try to emulate another preacher’s style and message when you preach.
#2 Trust the Lord to develop the style He wants you to have as you pursue preaching.
#3 While we all may share the same soteriological view don’t hesitate to make another aspect of Scripture your interest and the subject of your preaching.
#4 At some point you will have a distinct style. See it as a gift from the Lord.
#5 Enjoy the time of the Lord teaching and guiding you along your path to becoming a fruitful proclaimer of His Truth.
#6 Study homiletics. See what the past masters of preaching have written about the art and science of preparing and preaching sermons.