GrapefruitV wrote:I bet no one can do "ы" at the first try (word example).
actually im not sure if im doing it correctly between [i] and [u], with self-teaching and some tips gotten from mongolians, but i dont remember having a problem with that particular sound itself alone. does it have a minimal pair to compare with?
the problem with russian for me that i found was the complex combinations of all the consonants and vowels, especially ж and ш in combination.

(the very first word i tried was the polite greeting "Здравствуйте"... took me long to get used to it and made me feel like i could try any others after this.)
@borka,
thanks for trying. i cant find any written in IPA for those two words either, yet.
@amanda,
aye, it should take lots of efforts and enthusiasm from the both sides, the therapist and the treated, i can imagine therapies not working well when your bro didnt feel it necessary. age matters for hearing, but not sure if learning articulation matters much with the age, as many do learn foreign languages at later age.
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as for the hardest phoneme to pronounce that i can challenge others, there are these ones called ingressives.
http://ingressivespeech.info/
ive learned two of them for mongolian feedback words, both velaric (for yes) and glottal (for no), and im pretty good at them after a year of enthusiastic practicing and observing the natives lol too bad there is no sample file for the ones i can manage to pronounce.
i guess scandinavians have no problems with these, but i havent heard these uttered with j/y and m by scandinavians in person yet, my current ambition now is to hear them in real and try to mimic them!