I have had the experience that many teachers could not satisfactorily answer questions about technique, or help me when I had issues. I got some tips but nothing that helped me make the fundamental overhaul that was needed.
I'm guessing that 99+% of piano students are in the same boat as you in this regard. If you don't mind my asking: Were any teachers able to help you make the fundamental overhaul needed in your technique?
If no, do you think there exists a teacher that could help you?
If yes, I imagine that person would be hard to find since you already had many teachers. Any luck with books or videos to answer technique questions? Were you able to help yourself on some items of technique when the teachers/videos/books could not?
You're welcome to ask. No teacher was able to help me, but I also stopped seeking out teachers for advice some 4-5 years ago and have been working on my own since then.At least one - me. If I, with what I know today could have been the teacher of myself as I was 10 years ago when I desperately needed help, I think I could have cut down the time I spent working to get myself to the point I'm at now into 3 years rather than 10. A lot of the knowledge I have now I simply lacked, and some of it is fairly simple stuff that no-one pointed out to me or cared to explain in depth. That's also true for some of the stuff I knew about but did not know how to actually do or what to focus on/look for etc. You only see what you see, and don't see what you're not aware of, unless you get lucky and realize it at some point.There are also a few teachers in my country that I have my eye on and would consider seeking out if I felt like investing significant time into working on my playing skills today. (I'm not performing any more but I still do some things in the music business, more on the "scholarly" side or what have you :d)I did find some help from certain books pointing me in the right direction. The problem was that others confused the hell out of me and pointed me in the wrong direction too. So a lot of time was spent untangling what explanations I personally benefitted from heeding, and which ones I should ignore, regardless if they were "popular" ways of talking about technique or not. Ultimately I've had to get to know my own body and figure out how to work with it, but the foundation to that was laid by knowledge from a number of books. Some disciplines outside piano such as meditation, Qi-Gong, Alexander Technique etc have also helped.That's not to say I have great technique or anything, but a lot of the issues I was struggling with have been solved or seem to make steady progress towards being solved. (I hate using the word "solved" though because you're never done IMO) I would have been quite happy to start my music degree 10 years ago with the technique I have now, despite its remaining flaws that I'm still working on
I did find some help from certain books pointing me in the right direction. The problem was that others confused the hell out of me and pointed me in the wrong direction too. So a lot of time was spent untangling what explanations I personally benefitted from heeding, and which ones I should ignore, regardless if they were "popular" ways of talking about technique or not.
Ultimately I've had to get to know my own body and figure out how to work with it, but the foundation to that was laid by knowledge from a number of books.