Man78592,091 18 Apr 2020 20 Apr 2020 20 Apr 2020
Start an entirely new Game slot on Normal difficulty and exit to menu after gaining control of Artyom (first autosave) in Moscow. Then start a Normal difficulty playthrough from Chapter select.
This will ensure that you do not have to rerun the chapter again like I did. (I started from a Reader difficulty save slot) :)
I hope that helps someone.
From there, save often and reload if you take a bunch of damage in a fight. Disassemble your medkits at workbenches where possible to remove the temptation or limit the possibility of accidental usage. I found only the first and last part of the Chapter I had to be careful in.