Hover mouse over crafting with 15 rag strips in your inventory and start the macro. It will automatically train your survival skill by crafting and uncrafting rags. Must not use in in windowed mode. Make sure it is the active window only. Best to run while you sleep or are afk as you cannot background this task.
Download the program (Download) and go to the macro editor
press the button «Open file»
and select the downloaded file
assign a macro to a key and run the program