How about selling Cody, Wills and Emmy and getting a big, calm, been there, done that schoolmaster?
Sometimes what you *need* is something that not only what you actually need but also what makes you calm, relaxed and thrilled to go ride.
I have an adorable greenie that fits me size/skill-wise but I've been spending a ton of time lately on a borrowed, ginormous gentle giant of a warmblood. He's trained through 3rd level in Dressage so he knows more than I do, has dabbled in Eventing, Trail Riding, Fox Hunting, Western.... pretty much you name it, his owner tried it just for the heck of it. He won't just "give" you anything but if you completely and utterly ask wrong he won't get mad.
My friend who is loaning him to me pointed out that my riding is improving by leaps and bounds simply because I'm not afraid of "ruining" him or him killing me if I accidentally smack him with a whip or some other boneheaded maneuver. I love my lil greenie and I am now doing better with him because the other horse is giving me confidence. I have no interest in selling my lil guy but right now, I just needed this big old comfy couch of a horse!