What a disappointment! I had looked forward to this one but found it dated and amateurish: dated, in that 1940s kind of boxy, preachy fashion, and amateurish (or maybe just dated, too) in the structure and the character development. The characters are mostly one note: "I/we want/need ______", and only find solace in visits to the deaf mute in town, Singer, who they think truly understands their yearning. (He doesn't, he's just a good listener). 
 I agree with others that something felt 'off' about the pacing, too. Sometimes things seemed to be picking up steam, going in an interesting direction, only to cool off again. Of course, this may have been intentional, just to hammer home the point that nothing we're hoping for comes to fruition. 
 My biggest point of contention is that the characters react (or don't react) in ways I don't believe to be true, just to further the author's point. For example, at one point all 4 characters visit Mr. Singer at the same time and become awkward around each other. Mr. Singer can't understand this and repeats a few times, 'how strange! They know each other, and yet they do not talk to one another. I wonder why this is.' Wink, wink reader - this story is about disconnectedness! 
 While certainly amazing for a teenager to write this novel, I couldn't get past that angry teenage emotion of it - dead serious, with a certain lack of nuance about life and the impulse to declare "we're all alone! Things are unfair!" There were a number of nice scenes and details but I would not recommend it.