Baby Goose, please believe me that I am not trying to get down on you in any way.
ALL the horses I ride know they are bigger, stronger, and faster reacting than I am, especially the 1,800 lb. 18.2 half draft. That is part of the problems I have with these horses right from the start.
I cannot go trail riding, though I used to do a lot of it. This is because of my exhaustion, I can only manage riding 30 min., and I always want someone keeping an eye on me. I have had horses “disappear” from under me on the trail, including, especially, my first horse, my angel from heaven, who just every once in a while got a hair up his ass. He had the best disposition of every horse I’ve ever known. I’ll be totally honest, I am TOO SCARED to trail ride nowadays, though I have not had problems recently the rare times I’ve gotten out of the ring. It is just too exhausting for me.
One of the beauties of the Forward Seat was the insistence that riders learn, and frequently practice, riding the horses on loose/sagging reins. Another beauty of the Forward Seat is the insistence that the lower leg stay STABLE. This is the main reason that I, with my many, many physical faults, could ride my Anglo-Arab (the angel), Arabs, part Arabs, and Paso Fino without inciting them to run away or ditch me on the trail or in the ring. None of these horses were “quiet” (except for the angel–he took care of beginners), and the Paso Fino often felt like a fire cracker about to go off.
It was when I got out of the Forward Seat, in the ring and on the trail, that the horses would start getting restive, spooky, snorty, head flinging, shying and exploding. The horses got this way because my legs would be looser and not under my control, my balance would worsen and I’d be shifting around in the saddle more, and those problems made my hands worse, less fluid, clenching my fingers, and becoming harsher to the horse. My bad. When the horse made its point that I needed to improve my riding right then and there, I mended my ways by getting back into the proper Forward Seat and my hands improved because my seat was more secure, and the rest of the ride was usually pleasant.
I am NOT saying that you are a bad rider. But it sounds like out on the trail it may benefit you to change your riding some. I had to, I had to get rid of the horrible seat I developed in South America just trail riding just so I could ride my Anglo-Arab, the angel horse. He may have been an angel, but he was still 1/2 TB and made sure to remind me of that fact when my riding got worse. And you know when he made a point to dump me? It was when my seat loosened up out on the trail, many, many, many times.
I hope you get some good ideas from this lengthy discussion of my riding sins. Looking back I am amazed that my horses never tried to kill me because sometimes my MS made my riding SO BAD. As my MS got worse the only place I could ride was out on the trails, so I speak from years of experience with this. EVERY TIME I bought a new horse, I would wonder why in the world I ever thought that I knew anything at all about horses because the first few months were hairy at times. I would wonder why I ever thought I could ride at all even after decades of riding. If I had not been riding Forward Seat, I never, ever, ever have ended up riding seriously for 47 years. I might have made it just riding Western (Western back then, different now) just because I would have been able to hold onto the horn, but I sure would not have made it riding in any other English style (modern hunt seat, dressage or saddle seat) out on the trails those years my MS was quickly worsening.
One step forward twelve steps back? I’ve been there.
Super, super discouraged years on end? I’ve been there too. After my car wreck I hardly rode for 5 years, I’d try but I just got too exhausted and I could not do it without help. I wish so very, very much I could still ride like I could on trails and all, but riding is just too important to me to stop doing it in spite of being limited to the riding ring. Riding keeps me walking on my own two feet, riding got me out of my electric wheelchair from over a decade ago, and I just cannot give up on riding horses.
Good luck. I am on your side. I think you can get through this, mostly due to the fact you have continued on for years. That is what I did, and I still ride and could probably go out on the trail in relative safety if I just had the energy to do it.