There aren't any rules in western riding. There isn't a proper position, proper seat, proper much of anything. If it works for you and the horse, fine.
Horses don't know if they are English or western. You can mix it up if you wish. Your horse will adapt to how YOU like to communicate and balance. Just relax, goof around a bit and have fun:
This isn't exactly accurate or correct bsms...
You admit to doing things "your way" but you are not
a taught rider with years of lessons, let alone for the show ring .
You toss on your saddle and go...and that is great, for you.
Your horse makes many of the decisions about what it does and how...not you. Again, you admit and refer to that in past posts.
rules, slight differences and nuances of riding English to western in where you sit, the type and amount of contact you have with the horses mouth and whether the horse is trained discipline specific.
different as I have learned being a classic trained English rider and now dabbling in western equitation and trail/obstacle so learning a new language of communication with my horses...
With the horse being a rescue, honestly, the rescue may not know what or how the horse was trained as a riding partner.
You may be riding a English trained horse in a western saddle or vice-versa.
One thing you will find is the difference sitting in a western saddle if you are accustomed to English...
Equitation is equitation to learn, a silent harmony between horse and rider is the goal.
Good body alignment is paramount no matter what saddle you sit on...
If you really want to jump, then continue to take those riding lessons English cause you are still learning how and not yet ready to take on being the trainer are you?
You may not want to stop those lessons jumping if you want to increase your knowledge, ability doing over fences work, and keep bad habits away.
You can work much on your equitation though riding on any animal
The horse over time will
learn you, your nuances, but it is nice to know and understand their language spoken.
Most places, rescue or not, is/are
still going to put stipulations on what you are permitted to do with a animal they are ultimately responsible for...
You also might not be able to just trailer the horse off either unless the barn goes, the trainer at the barn goes or you go with adult supervision of a qualified rider...
Make sure of the terms of what you think is "do as you want, when and what you want" and if you as a minor are allowed those privileges with your age.
Enjoy the journey of horse... a lifetime of learning together!
Never forget either that true rescues are about rehabbing and re-homing animals to new loving homes, so what you ride today might indeed be adopted by someone and leave...that is what rescuing is truly about
...fixing the wrongs and finding new loving caregivers so the rescue can
do it again and again.