Here are some articles I found for this one. There are a TON of good ones, so get ready.

Q&A: Questions and Answers
New Era March 1991

"I have a real problem with procrastination. I leave assignments unfinished, goals unmet, and promises unkept just because I don't start things on time. I don't mean to let people down. I just can't seem to make myself get going. What can I do?"

Taking Control of Your Life and Other Odds and Ends
by Ron Woods
New Era September 1980

Special Issue: The Scriptures—Written for You
The Experiment -by Heidi Harris
New Era June 1995
*I really like this one!*

Television and Time -by Elder F. Burton Howard of the First Quorum of the Seventy
New Era September 1979

Why Am I Running? - by Elder Angel Abrea of the Seventy
New Era January 1991

Special Issue: Leadership
Personal Time Management: One Key to a Leader's Effectiveness
by Rex W. Allred
New Era June 1977

Idea List: Doing Time
by Tamara Leatham Bailey
New Era November 1997

I WANT MY LIFE BACK
by Elder William R. Bradford of the Seventy
New Era September 1993

The Message: How to Find Safety and Peace
by Elder M. Russell Ballard of the Quorum of the Twelve Apostles
New Era November 1997
(I also listed this for Lesson 43)

New Era March 1981 /Mormonad – Procrastination (sheet of music, no notes)

New Era October 1990/Mormonad – Killing Time (boy on chair in desert) (D&C 88:123)

New Era November 1990/Mormonad - Some Things Can't Wait Procrastination can create a mess. (See Mosiah 4:27) (girlw/ ice cream cone)

New Era February 1991 - Ready to Serve? If you're strung too tight to have time for others, there's a hole in your game plan. (See Gal. 5:13-14.) (tennis racket w/ hole)

As I said, there's a ton for this topic - meaning this must be something that youth have a problem with!

Good luck!