Let's get down to business
The next few days of Seth's life were simple. Once he had regained enough energy, he set about preparing his body for the inevitable battles that were to come.
Following the instructional holographic training regimes created by the knowledge in his journal, Seth honed his body in a multitude of different ways.
He spent most of his time with a selection of martial art katas, slowly performing a series of moves and adjusting his body when the holographic overlay would show his errors. If anyone was watching, he'd simply look like one of the many elderly people who would perform tai chi in the parks.
Since he had lost his spear along with his arm, he didn't have any reason to continue with spear training. He had sent out one of his puppets to go look for his discarded arm, but it was long gone.