You're making a transition to adulthood! You have important life-changing decisions to make.
...Do it right the first time and you can avoid a high misery-index.
You probably won't use all of the tools in the UNCALENDAR® LIFESTYLE book, but just beginning to use it will give you a significant edge over your peers. It's competitive out there!
Over time you'll probably try some of the Advanced Techniques and maybe, if the muse strikes you, you'll give THE TRAINING ROOM a shot. (No need to tell Mom and Dad or your friends that you're actually trying to improve yourself.)
Recommendation: The Halfsize version fits in a backpack ... It's the student favorite!