Sermons or homilies that focus exclusively upon Christ the Lord are usually powerful and most effective, while those that focus upon ourselves are usually weak and instantly forgettable. For example, if I tell someone not to worry about anything without mentioning the Lord, that'd be a complete waste of time. My suspicion is that in the latter case, the speaker himself doesn't really know the Lord well enough yet. You see, if you know the Lord intimately, you'd want to talk about only him to others. He's really the only one who can fundamentally transform us. And people need to know this! To rely upon ourselves to change ourselves just won't work. My advice—no matter who you are, surrender yourself to the Lord to attain union with him first, then you'll receive the power you need directly from the Lord to get yourself transformed. After that you won't need to listen to another sermon or homily again, for you already dwell in the Lord!