Your hair is always greasy, pimples pop up everywhere, and suddenly your family is getting on your nerves... What's happening? Well, girls: Let's call things by their name. Growing up feels like riding a roller coaster, but if you know what's coming, it can become much easier. In this guide, you'll find everything you need to know, from choosing the right bra to the image you have of your body. So relax and enjoy your adolescence!