I would ask that person to give me the source on what he/she is telling me and move from their, and i am sure there are a lot of educated people around who can help you in answering your question but meanwhile try searching on this website http://www.islamqa.com
You can get hair cut as long as you don't match the norm-style of men )probably keep it below shoulder), as a hadith suggests that women should not imitate men in looks, dressing etc. I am sure there would be several type of opinion, but in the end its your decision as you have to respond to Allah swt.