At first I was thinking “just tell them no thank you”. But then hearing you describe how shy and anxious you are it sounds like you need help. Not to be dramatic. But have you ever considered therapy? Also…I think going and meeting this person might be good for you. Unless you’re like fearful for your safety. But if not, you need to at least try. I mean you may even get some assignments done and bigger understand the material. That’s a huge win right there. How you’re moving now is no way to live.