Lyrics:

When I was feeling 'bout sixteen, I never had no idea
Listen to me if you want to know what I mean, your expression will let me see
I never knew what I was looking for, I never had the time
And now that time has opened up my door, now I'm looking forward just to see what, just what's mine
When I was feeling 'bout eighteen, it's then when I began to see
No matter how hard you push on the door, it won't open without the key
Opportunity only knocks once, if you shut it out it's a sin
And when something keeps right on poundin', then, my friend, you'd better let it in
Now I feel just a little bit old and, sadness fills my brain
I can flash to future years and nothing is the same
Nothing is the same
Nothing is the same
Nothing is the same