Recently I interviewed for a position I really wanted. Interviewing has always been an extreme weakness of mine. I choked and gave a lot answers I didn't feel confident with. Needless to say, I didn't get the position. I have read on career websites that it is acceptable to follow up by asking the interviewer what went wrong and for suggestions on how to improve. If it is acceptable to do this, could someone also maybe give me advice on how to tactfully let the interviewer know this and let them know that I would still be interested in the future and that I hope I didn't ruin the chance of ever being considered.