do you like jot down ideas in a notebook or something and then end up with a song? I.E. "uhh im gonna write a song but its gonna be 'bad' so im gonna call it I just did a bad thing. haha well i just got a quote so im gonna put that in my I just did a bad thing list. oh wait. its a song now." 
i was going to say no but actually yes that is pretty much how it is, but there is a little more to it after that