Hi
Playing the piano has always been my passion. From the age of 6, I could always be found playing the piano in every spare moment I could find. I always felt that piano was my life and without the piano there would be no life. So yes, I was extremely passionate about it in my youth.
I began performing not because I wanted to particularly, but because I was asked to and the better I became, the more I believed it was what I wanted to do. But I discovered that performing was not my passion. Playing the piano is my passion. The two are not the same, at least for me.
If you go to a conservatoire, you will have the opportunity for a top notch teacher, and if you are good enough, will find opportunities for performing. But many pianists who go to a conservatoire don't end up performing; they become private teachers or in the UK can go on to become school music teachers.
I thoroughly enjoyed my time at the conservatoire I attended and feel honoured to have had an excellent teacher who believed in me. And I have fond memories of the concerts I did before I quit. But in all honesty, I'm not totally convinced I would make the same choices again. I discovered, although I think I already knew, that it was not performing which was my passion, but playing the piano. Just playing the piano is my personal passion and I do enjoy teaching it to a degree but it is the playing itself which I so much enjoy.
So basically, my thoughts are that no matter what career you take up, if your passion is playing the piano, that will remain for life. I can guarantee that because I'm getting on in years now and am still just as passionate about playing as I ever have been. But I realise now that I could have retained that passion and taken a different career which might have offered more stability, possibly! Although I do like teaching, I must admit that being a self employed piano teacher isn't perhaps as stable or lucrative as some other careers I could think of.
If you can see yourself as a performer of some kind, or teaching as a private teacher or at a school, then I would consider a conservatoire as a definite option. If, however, you're not totally sure if you are good enough to make the grade as a performer and/or not certain that your would enjoy the life style of a performer, or you don't necessarily like the thought of teaching for the rest of your life, then perhaps consider a different career and keep your piano playing as an interest your are particularly passionate about.
In many ways, the performing life of a pianist can be very lonely and it is not everyone's cup of tea by any means. Many enjoy it, but I discovered it didn't offer the life style I personally wanted. And although there have been occasions when I have perhaps regretted quitting, in my heart, I know that what I am passionate about most is when I am playing the piano, not for someone else, but for me! That has been a consistent driving force throughout my life.
I offer these thoughts only for consideration because at the end of the day, we are all different and my experience, expectations and goals are likely to be very different from yours.
Good luck!