Hi Boran,
Welcome to the Forum and I - along with many others on this interactive network - admire your enthusiasm, especially at your age and coming from that part of the world. It is indeed rare.
The Yamaha Clavinova CLP 230 is quite good and I also recommend this to many of my students who cannot afford an Acoustic/Grand Piano.
The Steinway or Bosendorfer will come to you in the course of time!
Your English is very good!
I endorse pianowolfi's advice - 14 hours daily is too long. You have to think of the strain on your fingers. So please don't overdo it.
Then, what is that you understand by "world class"? Virtuosity, headlines, photographs, interviews and constant tours? These may have just the opposite effect and take away the tranquility you get from and in the music. Has happened to many great performers - you must be able to cope with Fame and Music at the same time! That can be tough.
As far as "your world" is concerned, you already have "class" and that is what matters. You play music firstly for yourself - and incidentally if in the process others like it, well and good. Otherwise it doesn't matter.
As per the Indian philosophy, through Music your soul is communicating with God. Hence revere Music and put yourself always below it, always looking up to it. Never get the thought that you are going to master it. It is not possible.
Listen to CDs and watch DVDs of the Bach, Tchaikovsky and Chopin pieces you are practicing. Hear and see how others interpret the same compositions. I can help you with free download sites for Sheet music and MP3s of classical pieces.
Chopin is difficult - but you can master it. Look under another part of this Forum "I have a 10 year old son...". The kid plays Chopin so effortlessly - you can watch it on YOUTUBE under "Enzo".
So much for today. If you want me to e-mail you Sheet music downlaods, I would not like to overload the Forum's bandwidth and will have to use my personal e-mail -
ksnmohan@yahoo.com.
Zheer IS in London.
Regards
Prof K S (Mohan) Narayanan
Musicologist, Composer, Teacher
Chennai, India