this is what i do.

when im training my horse, i always do the lessons first, then ill do 30 min per each thing (stamina, dressage, galloping, etc) then i groom, pet my horse, salt stone, and then water and feed. put in pasture for 5 hours. with my remainder engergy, i do another 30 min/1 hour in the skills my horse is good in.
the ones where is doesnt say " due to your horse's origins, blah blah blah"
then ill feed and possibly give a turnip. then go to bed in pasture, for my horse has a blanket.
helps keep moral up.