Legendary Discus Thrower, John Powell said that you need 10,000 throws a year to be a good thrower. Below is a breakdown of how to get to the 10,000 throws.
10,000 Throws
~1,000 throws per month
~250 throws per week
~50 throws a day
How can you get those 50 throws a day? You do not alway need to be in a circle to throw, you can perform standing throws and drills, throwing the implement back, while waiting your turn in the field.
50 Throws per day
Standing throws - 12
Pivots - 12
South African Drill - 12
Full Throws - 20+
Additionally, you should always have a notebook at practice to record what you re working on, distance, as well as notes about the practice.