Most of my tennis years, which is since 1974, I"ve been involved with practicing with junior players from various areas, all serious with parents pushing them. I'm the prototype lefty. Big serve, erratic, head case, big topspin forehand, quick. Exactly what most juniors need to practice against to be ready for lefty opponent's.
https://tt.tennis-warehouse.com/index.php?threads/junior-tennis.457008