When you sit down and write a song that you want to be accessible, try to write it as if you were listening to it on the radio and hooking yourself into it. Think about it as if you were someone else listening to it on the radio. In other words, if you were listening to that next chord at the top of the chorus, would it lift you? If you were talking about something and you didn’t know the story and/or the feelings behind it, would you know what you were talking about? That’s the test of what you should try to do in a song and how to figure out what goes where. Just my thoughts !!!!