Well, it's not a mistake if you have a few years of prior horse experience. However, I'm under the idea that you don't have a lot of experience. It honestly depends on the horse, too. I know a quarter horse, the 'perfect first horse' breed, and he's crazy! However, there is an Arab of my friends, and Arabs are known to have high energy levels, but my friends Arab is 6 and you could put a little kid to start lessons on him and he's bomb proof. It all depends on the horse- if you two click together, then y'all click. Best of luck to you!