random song line idea

so the other day I was sitting in class and this song line just popped into my head so i decided to post i know i'm babbling so here goes:

You think you know me but I wonder what you think now?

P.S: It take me forever to write a whole song the last one only took a day because i was really mad when i wrote it. The longest its taken me to write a song is 2 weeks.