mik5: Based on your latest post that your first question was answered by Rabbi Forst directly, I would suggest that you should not ask someone else (even if the English sefer would tell you that you can).
Since your second question was answered by “someone on the hotline”, I would think that you can ask that question to someone else.
My grandmother was born in the US and attended public school (girls yeshivos were virtually unheard of at the time). She davened what she was able to in hebrew and said everything else in english.