Here's the Plan

dressage: +4, gallop: +9, trot: +9, jumping: +9

stamina: +4, speed: +4

dressage: +8

stamina: +8, speed: +8

stamina: +1, speed: +1, dressage: +1, gallop: +1, trot: +1, jumping: +1

stamina: +3, speed: +3, dressage: +3, gallop: +3, trot: +3, jumping: +3

dressage: +12, gallop: +10, trot: +10

dressage: +2

stamina: +2, speed: +2, dressage: +2, gallop: +2, trot: +2, jumping: +2

stamina: +11, speed: +11, dressage: +11, gallop: +11, trot: +11, jumping: +11