Keepers: set feet, get a strong set position, and attack the ball with the near hand on the dive. Recover and distribute quickly and accurately to start the counter. Handle cleanly when the shot is at you.
Set a full goal with the keeper and three servers spread across the top of the box (one high, one low, one central). Servers strike in turn: aim one low to a corner, one high to the opposite corner, one firm and central. The keeper saves and immediately distributes with a throw or roll to restart. Keep the tempo high and rotate servers.
Diving is the part of goalkeeping that looks athletic and is mostly technical. A keeper who pushes off and attacks the ball with the near hand leading covers noticeably more ground than one who sits back and reaches with the trailing arm, and the difference is roughly the width of the post. Almost every ball that beats a young keeper by a hand's width is this error rather than a lack of speed.
What makes it hard is that sitting back feels safer. Attacking the ball means committing the body sideways and slightly forwards, which is uncomfortable and produces a heavier landing. Coaches who only feed shots into the corners reward the reach; feeding shots at saveable distances and demanding the near hand is what changes the habit.
The hierarchy of outcomes is worth stating explicitly, because keepers often invent their own. Catch if the ball can be held. Parry wide and away from the six-yard box if it cannot. Never parry straight back into the area, which turns one shot into two against a striker already running in.
The distribution half of this exercise matters more than it seems. A save that ends with the ball rolled straight to a teammate under no pressure has created a counter-attack from nothing, and the opposition are at their most disorganised in the two seconds after they have committed to a shot. Keepers who take four touches to settle themselves waste the best transition their team will get.
Save it to your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block. Or start from a blank pitch and build your own.