I was thinking of a group more like "you said your piano teacher suggested practising with a metronome - have you actually done so this week?"

"you've said a priority is learning the piano, yet you aren't keeping track of your practise or recording yourself or making any way to check your progress and get feedback. Have you noticed that is inconsistent with your stated desire?"

"Do you realise how much you are talking about your commute to work compared to it's real impact on your life?"

not

"you really suck at the piano"

"and have you noticed how stupid you are?"

"and how you talk forever about boring things?"