Thank you for your kindness,
I had some classes with a private teacher in a first moment, but this was a kind of Claydermann-enthusiastic-like, so I can't say I had any information about real piano playing. But after some months she let me use her piano for free during the next 3 years while I was "discovering" Bach, Mozart, Beethoven, Chopin, Liszt, etc. So I studied alone.
After some time I had my university experience, and when I mentioned I wanted to be a pianist someone told me: "you need be born again in Russia, and start piano with 3 years old".

Once I couldn't find a "reborning machine" (hope the word is possible in English

) I made my own way.
I spent every and all days of my life studying during the next years. reading, playing, and researching on technical difficult repertoire. There was no life to me out of the piano room.
With time and dedication a lot of things become part of you, but believe or not, I was not thinking about technique, I was trying to find the right "sound" - the music. That was probably the most important tip by Faber
I still enjoy the challenges of a difficult piece, but the interesting to me is making music of it.
After some time I avoided listening recordings because I started to find too much inconsistencies regarding the musical scores in comparison to the recordings of the famous pianists. This was the beginning of my theory on the "Scientific Interpretation System or Musical Hermeneutics", which is a book now.
Then I noticed there was (and still is) an abyss between you cultivate your brain and have results, and you find the "job" as pianist and/or composer in any place in the world.
When you start no one listen to you, no one pay attention, and believe or not, some people even say you are not real!!!!!

So, it is a matter of patience and love. What more can I say?
I recommend researching on piano repertoire, reading as much as you can, and give time to your brain make the necessary connections. A time to rest is very important, specially if you can rest enjoying something related to other arts...
All the best