I just got a email from the employer?? Can I ask about how the interview went and what i did wrong?

Question

He said the position was filled

Answer 1

I wouldn't ...walk away with your head held high

Answer 2

yes

Answer 3

I  agree  with  SDD.  You may of  not did  anything  wrong,  just  a  better  applicant came  up.  Ask  when  you can  apply  again,  show  a  real interest.  That  is  impressive to  a  employer.

Answer 4

Sure you can. The way I would phrase it is:

I'd like to get some feedback on my interview and resume in order to learn something about how I presented myself.