Okay, so I lunged her today after getting her nice and tired (lol, she's very very hyper, so I thought that would be best.) and she did great! I thought today would be best, since, while cantering, Rainy decided to jump over a cone that's about 1 1/2 ft. AND-she cleared it! Then, on the way back from a trail ride, she jumped a little 'ravine' (as we call it, since it was made by water running through an area). It was scary, but kinda fun.
But yes, she did very good. Only knocked them over a few times, and actually ended up jumping over them a couple times! =) And on Thursday we're having an actual lessons on jumping, which will be helpful. =)