Coach recommendations
Probably calculation and more specifically visualization. Other things as well but that is the biggest. And I don't have a structured method to improve.
NZ based chess coach, 8 years experience coaching, 40+ years chess experience.
Lessons via Zoom. Message me to discuss rates and availability.
Cheers
Richie
You can always try the chessable books like https://www.chessable.com/master-the-french-defense/course/13624/ or the free ones, like https://www.chessable.com/master-the-french-defense/course/13624/ its great way to add some extra knowledge and insight