[SinisterUser85]

think about all possible outcomes and discussions could happen outside of there

[nok32]

There's a great film about a dude that is put in solitary confinement by the Nazis and he manages to smuggle in a chess book as his only reading material. He definitely goes insane but also gets pretty good at playing chess in his mind against himself. Maybe that?

[Postaboy45]

Breathing techniques and meditation

[Yeahmaybe]

Reading, praying, eating, calisthenics.