One thing worth mentioning is that songwriting takes practice as much as any other endeavor for which one is interested. With practice it becomes more natural. With practice fear of embarrassment fades. With practice it becomes something you can teach and should try to do so.

I cannot recommend enough the free songwriting course from Berklee college of music which focuses on lyrics and song form. Again, many thanks to Noel96 for turning me on to this class. I’ve had several years of enjoyment now using the concepts from that class; getting to a point where if any idea hits me as one I want to dwell on for a bit, I have confidence I can turn that idea into a set of lyrics for a song without much trouble. Through practice.