I used to think I knew, now I'm not sure
I used to think I knew, now I'm not sure
I used to think I knew, now I'm not sure
I used to think I knew, now I'm not sure
I used to think I knew, now I'm not sure
I used to think I knew, now I'm not sure
I used to think I knew, now I'm not sure
I used to think I knew, now I'm not sure
I used to think I knew, now I'm not sure
I used to think I knew, now I'm not sure