Common fix high
Wrong piece of mind
Use this peace of mind
i · WhyTwo lines, no filler
The idiom is 'peace of mind' — a state of calm. 'Piece of mind' is a phrase too, but different: 'I gave him a piece of my mind' = I scolded him.
ii · Brew tipKeep this one
Peace of mind = calm. Piece of my mind = a scolding. Very different moods.