Hey Aimee! Owner of two horses, mother of a show jumper. Welcome to the forum!
Are you taking lessons? Have you located an English coach near you? That would be your first step, obviously. I grew up with horses and rode Western at first, just because that's what people did where I lived. Then, much later, my daughter got into riding, then jumping, then we both took the leap (literally) into show jumping. I would not go back to Western, though I keep an Australian saddle for trail riding. But the lightness of an English saddle, along with the contact with the horse, are addictive, even for an old fart like me ;)