Join Date: Aug 2009
Location: New South Wales, Australia
Unlike some others here, I would definitely rule out Thoroughbreds. Not because you can't get some good ones, because you can, but because you have specifically lost your confidence on them, and I know how that feels, and you're probably just not going to feel confident on a TB because of your past experiences.
A Quarter Horse would probably be good, but in Australia they are usually quite pricey and not so easy to come across., and you're probably not going to get the size you want in a Stock Horse, and they do seem a little more highly strung than the Quarter horse (in my experience).
Heavy horse breed crosses seem particularly popular in Australia, and you can come across them in a lot of places. I recommend if you can only ride on holidays not to get a horse until you ride regularly. Most heavy horse crosses here are crossed with TB, generally Clydesdale, Percheron or Shire crossed with a TB. There can be some really nice horses, but I have come across a few who are strong, goey and have a bit of an attitude, so like all horses judge them on their individual merits, and not just their breed. If your horse isn't worked regularly then it will always be harder to ride - which is why I recommend just lessons until you can ride all the time.
Where will you be going to uni? Perth or heading out east? I'd get settled in your university before getting a horse, you don't know what it will be like yet, where you will get into, and what the situation will be like there. Wait until, when first semester is over, horses are cheaper in winter, easier to come across, and you will have a better idea of what is going on in your life.