Yep the book was Your Youth - Getting the Best Out of It.
Here is a quote for the young ladies, any other requests from thsi book will be happily provided:
***yy chap. 4 pp. 33-35 Moving into Womanhood ***
STRIVINGFOR EMOTIONAL BALANCE
17The physical changes of adolescence may bring emotional changes. Even as a young girl may feel full of energy one minute and exhausted the next, so too her emotions may tend to fluctuate widely. Periods of brightness and joy may be quickly followed by periods of gloom and depression. You may find yourself wondering if you are really normal or just what kind of person you are turning out to be. Especially in the modern industrial society, with its shifting sets of values, adolescent girls are subject to tension and uncertainty.
18It would be easy to give in to this instability, become withdrawn, introverted, or become very independent and assertive. Some girls do give in to displays of rudeness, flashes of bad temper or coarse speech. Others begin to make a pretense of being something they are not, becoming superficial. But this does not help; it only worsens matters. Now that you are coming out of childhood, it is a time to make a serious personal effort to cultivate the fruits of God’s spirit—love, joy, peace, long-suffering, kindness, goodness, faith, mildness and self-control.
19Cultivate, too, habits that contribute toward stability. Instead of letting your room become messy, keep it orderly and neat. Strive for regularity in sleeping and eating habits; your developing body needs all the help you can give it. The more you can do along these lines, the more calm and stable you will feel, and this will help to moderate your emotional experiences.
20By all means do not let this period of transition cause you to pull away from your parents. They can provide the solid help and reliable firmness you need to lean on so as to keep your balance during this time of change. While you are subject to much "peer pressure"—pressure from others of your age to be like them—realize that they themselves are changing. That is why what pleases them today may not please them at all tomorrow. To be overly concerned about what they think of you will only increase your problems. That is why, too, when you have personal, intimate questions, your parents are by far the better source of information. They can give you a much fuller, more balanced answer than your schoolmates could ever give.
21Just as early showers are followed by pretty flowers, so, too, if you learn to weather the storm and take things in your stride, you will find the way to stability and confidence. While you should be concerned about keeping yourself physically well and clean (by good diet and regular hygiene), you need to concentrate—not so much on what you are on the outside—but on what you are on the inside. The adornment of a "quiet and mild spirit" produced by the ‘secret person of your heart’ is what will make you truly attractive—in the eyes of God and of humans.—1 Peter 3:3, 4.