I am sorry for the loss of your horse and your family dogs....how old was your horse and his/her name?
my first pony was Scout. My dad got it for me, it was a shetland pony, and since it was 17, they thought it would be gentle, NOT. That pony taught me more about riding, or hanging on than any horse I ever rode.
Then I got sugar, skin and bones, and given to me from someone who couldnt take care of her anymore, she was 13.
Then I got Lady Dawn, the white arabian, a true love of my life, she was 3.
Dogs too numerous to mention, but Buster a collie lived to 13, Carrie was a neighbor throw away, doberman, 7 when she picked me, and lived to 13. Tikibelle was between and three, not real sure, a rescue, but she lived to 13/14. So my dogs have pretty good longevity, but never long enough. My baby in my avatar, is 7.5, her name is Bluebelle.