This was a very good read, and had lots of helpful, encouraging information.
However, this book is really geared toward teenagers. I'm 26, and I've lived and left the online language phase of my life. The use of contracted words and 'u' instead of "you" is endearing at first, but gets annoying quickly. I lost patience with the book about a third of the way in, and started skipping around and skimming at that point.
One of the things I do appreciate, and what keeps me coming back to young adult non-fiction, is the information being distilled into the easiest explanations with no drawn out paragraphs of superfluous commentary. Plus, finding books like this is hard, so I appreciate that it's been written. And the topic is so needed, for myself, for people younger than me, for all of us who are told that we're not good enough and our flaws are faults.