It is very difficult to share ourselves, in person and often, on websites. It is a good idea to know yourself and who you are and what you want and be friends with yourself first. I would take this experience as a learning experience for yourself and not worry so much about being judged or think so badly about yourself. It sounds like you made a mistake, not understanding the subject; English is not your first language? Do not be so hard on yourself or worry so much about what others think of you. If the woman is ignorant and does not realize you may have had difficulties with the language or concepts, that is her difficulty, not yours.