OP @SimplyLoveHorses this has happened to me several times. I was essentially a professional at age 14, but was a working student since age 11.
Today at age 38, I no longer coach kids or adults in any way except for rarely a clinic here and there for advanced riders. I specifically only ride young horses and stallions for breeding farms, both internationally and in the states. I also do sales for trainer friends only that want to import young horses from breeding farms abroad for their clients. I very rarely teach amateurs or beginners or children anymore. Sometimes I miss the kids, but I have no regrets. My life is much less stressful (well it’s stressful in other ways). After 10 years of anxiety and burnout, I have found my niche in the horse industry that I enjoy and no longer try to force a round peg in a square hole.
Full disclosure: I have outside income from my consulting gig, thanks to my just under 20 year career in science and academia. An education was hard to juggle with my riding life, but looking back the best thing my parents ever did was not buy me a horse (I never owned my own horse for me until I was 31), ride horses of many other disciplines besides hunter jumpers, pursue a graduate level education and a career in academia & science (that burnt me out worse than the horses), and of course I got lucky enough to ride internationally and realize that the there’s more to life than the United States show circuit.
Good luck. There is no right path for you… only the one that brings you peace.