“You should cut your losses when what you’re doing – such as being patient and hoping som asdfadsf ”

You should cut your losses when what you're doing - such as being patient and hoping someone else will change - just isn't working. Think about trends & make a diary of the issue, scaled from 1 to 10. Is it really getting better? If nothing's changed for 2-3 months, you either haven't gotten the person to try or he/she has simply failed.