I think many of us are put off by the fact that it's a Backstreet boys song.
Also we don't know much about you so it's hard to comment without sounding like a douche. But I'm intrigued with the way you get the knocking on your guitar with your wrist, haven't seen that before.
although you did lose your way toward the end, it's a decent arrangement.
You may need to have your guitar's intonation checked out too. Averatu will have a
heart attack.