What’s interesting about Samuel as a person, to me, is the fact that he is both immature and too old for his age at the same time. A big part of him is stuck at being a 16 year old - getting up too late or not at all, not taking things as seriously as he should, acting on a whim rather than thinking things properly through.
On the other hand, however, prison shaped him into someone who uses his immaturity as a mask, who is somewhat aimless despite the fact that he knows that he wants to become a chef one day. It’s still hard for him to navigate through the daily grind, he is tired a lot and when he doesn’t sleep in he doesn’t sleep at all.
Samuel wants to be a good person, he wants to be successful, most of the time he doesn’t have the necessary drive to do what needs to be done, though. He has a fickle mind and fails to be a responsible person, though he wants to be.
He’s stuck between his wish to become an independent adult and the habit of running and hiding behind stupid jokes and generally childish behavior. It’s easier than facing the horrors he had to witness in prison, but at the same time it keeps him from developing and healing.