Definetly! Well done you. And as for the horse bucking and rearing this just proves it was a bad place to learn. No riding school should give any horse that has a history of this to a beginner! At my stables the owner Kim does trekking, she had a lovely mare who for 6 months didn't put a foot wrong. Then on a trek one day she started rearing when she culdn't get up front to lead the ride. The girl on her was experienced but Kim gave her her horse and walked 6 miles home with the horse. She didn't know at the time if she had something wrong with her. The horse was a bit naughty the week after and Kim decided she wasn't suitable for trekkig and she has been sold to a lovely home wth experienced people. In my opinion, if you are providing these kind of services you have to have faith in your horses and have tested them out in all manner of situations. I don't believe any horse is bombproof but its just bad practice, and dangerous to put customers and a beginner at that on such a horse. I think you are well shut of them to be honest, and you must be a much better rider than you give yourself credit for...go figure!! Keep updating us, its lovely to hear about your progress xx