Then scroll down to "About life", open it and tap "Version" seven times to unlock developer mode.
Go back to the main menu, and open developer options, tick "Opt into beta features".
Then just restart your life and follow the instructions.
Easy peasy: just be sensitive and get hurt a lot, emotions turn off, and stay off, by default after a while because the Detachment module is triggered on.
Every eighteen months (more or less) I have to taper off from coffee, especially if I get up to 32 oz a day, at which point I'm a buzzy, angsty basket case. Every two days, I drop my intake to a half to a quarter (so like 8oz on day one, and then 4 oz on day three and then 2 oz on day five).
If I go cold turkey, I get headaches. This way, I just nap a lot.
During this period, all my fucks go away. Gone. I have absolute zero fucks to give about anything. Mostly I just sit in a corner and social media scroll as if doing any of that will stimulate me somehow. It won't.
This is the closest I get to turning off my emotions, but man, it shuts down everything.