As a dad of a 10YO who pitches i realized that i was pushing too hard doing 3 days a week. 4-5 is a bit much. I backed way off and made it fun. I ask her if she wants me to sit on the bucket and if she says yes, i do. If not we go kayaking or something along those lines. It's hard not to get wrapped up in softball, especially pitching, but end of the day a 10YO is a 10YO.