It's so much work to be ever so lacking in rewards.
I went to my first APHA show and rode the CRAP out of Cowboy the first day to try and get him from being a jerk.
I thought this horse and I had a bond, but I guess that's just roses, glitter and fairy tales.
What rewards? Ribbons and money?
Your horse was a jerk. How much of that was you and not the horse?
Do you ever have fights disagreements with family or friends? Does that make your bond any less glittery?
If it's about ribbons, then maybe it's not really about the horse. It's more about prestige.
Horses act out for a variety of reasons. They aren't meant for the discipline you are trying to do with them, they are burnt out (which your horse could be very well saying WTH like you are), he's hurting, he's having a bad day. They aren't perfect. Even the very best trained ones have crappy days.
My horse has days where he's just in a flat out craptacular mood and wants nothing to do with me. It doesn't mean our bond is any less strong. I would never expect him to be all sunshine and butterflies every time I see him.
You can do one of two things. You can suck it up and realize that horses are a lot of work, but the rewards are far greater than body clipping and scooping poop. You can get yourself some help including have your mom step up to the plate and either sell the mini's or turn their care completely over to her.
Or, you can walk away.