You ride lesson horses. The last thing you want to do is buy a saddle to fit that ONE horse. Like I said-you might want to look at something that will fit a variety of horses, since you will not always ride the same one, and one that will fit you as you grow. You need to figure out what type YOU like, whether it is a close contact, or more of an A/P seat. Also need to decide your preference with knee rolls, etc. Like I said, I would suggest you try different saddles in your lessons.