What's the Name of That Book??? discussion

I read this book about 7ish years ago but I want to say it was published in the 2000s or early 2010s. It opens with the male main character who’s in his late teens waking up at some kind of train or bus station with no memory, he doesn’t have a bag but he finds a book in his back pocket. The book is temporarily taken from him but he gets it back with the help of security. Since he doesn’t remember anything about himself he takes on the name of the author of the book. I’m pretty sure at one point he finds a historical site that used to be the authors property and starts secretly staying in the cabin on the land but I could be wrong about who it belonged to. But he starts interacting with a few teens in the area and makes friends. Towards the end of the book he regains his memory and remembers why he ran away. One night he and his friends were driving around in his car - or a family car - and crashed into a snow pile I’m pretty sure, he thought the car was fine since it drove back to the house fine. The next day he had to drive his sister to her dance lesson but the brakes didn’t work and they ended up crashing and she lost one of her legs. He felt an overwhelming amount of guilt and blamed himself for her losing her leg so he ran away with a duffel bag of his stuff. A group of people at one point mugged him for the duffel bag and that’s how he lost his memory. From what I can remember the book ends with him contacting his father and letting him know where he is and they meet at one of the ends of the Appalachian trail. The title of the book has something to do with the authors name that he used when he didn’t remember his own.

Being Henry David by Cal Armistead?

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