Assume you have all the luxuries of a modern life in your Tardis (toilet, hot showers, TV, books, game console, …) which doubles as a mini self-sufficient apartment with it’s own energy stores and generation.
Where in history would you go if comfort wasn’t an issue?
Hard stimulants like Concerta and Adderall are better more for pure ADHD than for Autism+ADHD like I have. Anything stronger than caffeine overstimulates me too much, I wish I didn’t go years before realizing I was better off without it