I am at wits end with what to do with my horse.  If you could pass my info on, or point me in the right direction of someone who can help it would be greatly appreciated.

I have had my horse, Andy, an ex racehorse for a couple of years.  I bought him as a quiet horse who I hoped to train up and eventually use for eventing.  Over time as he put on weight he became more and more difficult to handle.  Initially I just hacked him over the 500 acre farm I grazed on and this wasn't too much problem but as I asked more and more of him the more he started to react.  It got to the stage where he wouldn't go anywhere without my retired Mare, if I attempted to ride him to far away he would throw a tantrum (front footing, bucking, spinning ) and become too dangerous so I ended up schooling him in a paddock nearby so I could at least get some work in.  I got a new instructor, someone who was recommended as he was helpful with problem horses.  He suggested doing a lot of lunging with him and this helped to a degree but Andy was still reliant on his mate.  It was eventually suggested to me that I take him away from horses completely to see if it would help, so I put him on a friends property with a herd of cows.  This seemed to help a lot.  He was easier to ride in different paddocks of the farm and didn't seem as stressed.  As my lessons progressed however, his trantrums increased.  My instructor and I tried to out think him all the time and come up with new ways to win.  Draw reins seemed to be making quite a difference and finally he was being submissive and more manageable.  It finally got to a point where we were happy with his progress and decided to have a go at taking him out again.  The least stressful thing I could think of was to take him to a neighbours arena.  Unfortunately when we got there everything blew up, he lost the plot and once again became dangerous and unrideable.  With blisters on my hands from the pulling on his lead rope I managed to lunge him until he was calm enough to return to grazing.  
I am at a point where I have tried everything and put in as much money as a student can afford.  I am a caring animal person and have grown attached to this horse.  I only want the best for him but when his actions are so dangerous I don't know what to do.  It has bought me to consider putting him down because I don't want to sell him and him to end up somewhere where he will be poorly treated because of this behaviour or for him to end up hurting someone.  He is a horse who would go far if his attitude could be fixed.  My instructor says he has great conformation and should be able to 'jump like a stag".
Please contact me if you know of anyone who can help.  I would be happy to give this horse away to someone knowing he will have a good life there or to someone who might be able to help him.  I honestly want the best for this horse and I am contacting everyone I can think of for advice.

Thankyou for your help
Angela Wilson

My contact details
(09) 8353578
0277667718
regalace@hotmail.com