Originally Posted by Saskia
Its hard, near impossible, for people to advise online because we do not know the situation. Words can be misleading and inaccurate and for a serious problem like this you don't need random advice.
What you do need is the advice of a trainer who can see you and the horse together. You mentioned a trainer you had out said that they couldn't do anything - well I'd be looking for a second opinion. You might not have the money to hire a full time trainer but at the very least you should be able to get a good one out to work with him and do an assessment of sorts. Get a really honest one and see if they think its your handling, or something else entirely. Talk to them about your options, but if your method isn't working and you are not willing to hire a trainer you're not leaving many options.
At this stage, with those behavioural problems its going to be difficult to sell him. As a responsible seller you could probably only sell to trainers, and even then you'll probably have to give him away. You also will have to face the distinct possibility that, if his behaviour continues, they'll have him euthanized. Your other option could be to just retire him to pasture. Once you sell a horse, you'll have no control over his future.
It's not cool to be thrown off horses. It's not cool to go to the ER. Part of being an adult is taking responsibility for yourself and your body, and riding horses that are consistently injuring you is not taking responsibility. It's childish and holds inconceivable dangers. Your life is shaped by your choices, so start making smart ones.
I've been talking to my 4h leader and when we start riding at his house again he's going to see what he can do, my horses are not consistently getting me hurt, its only a once in a while thing, and most of the time its them spooking at something that jumps out in front of them or its my fault, but it doesn't happen like everyday and I don't go to the ER everytime, I've been in the ER 4 times, once was my fault. And I know that once I sell him I don't have any control over him and that's what scares me, he's a good horse, well, he was, and im afraid that he will end up in the same situation he was at for, small fences area with 3 horses, mud to his knees and badly over weight, or worse, at slaughter.