I have Learned Optimism. Found it good but a tad tedious in the beginning (which is, admittedly as far as I got so fa)r.

But I must say that it might be a bit much, a bit overwhelming for a 13 yr,old or 17 yr. old.

Gardener

"My soul, be satisfied with flowers,
With fruit, with weeds even; but gather them
In the one garden you may call your own."
Cyrano deBergerac