Ok i just got back from an honors band in upper east tennessee. The kid sitting next to me was a sophomore and could go up to altissimo E. I can only hit A, and only on the F plus the first finger on the right hand and the 1 and 2 on the right hand side keys. I cant hit A on any other fingerings and have difficulty on the one i use. Ive been doing overtones and longtones every day and cant hit the second octave on the overtones. What am i doing wrong?