Terribly nervous, any tips?

I'm so nervous, one teacher wants to talk to my parents to tell them about how good I'm doing lately, problem is, i can't even talk to that man, he says he feels identified with me sometimes, and I think he might know that I am not totally 'right', everytime I'm next to him I feel nervous, like reminding myself that I'm keeping things too much to myself (Guess i feel identified with him too) and I start to blush and getting even more anxious about my mood, I manage to control it in class, but I just don't want to walk in and start blushing like an idiot because dont want to embarrass myself.
But there are even more minor problems: he may even think I'm a lesbian (Yeah... LOL I guess) I have solid proof he either way thinks I'm BI/Lesbian or that I've fell for him. The thing that bothers me is that I'm not any of those, if I was I would just prove it and stop faking things, I'm just obsessed with that man because I feel like he actually understands me. But he doesn't.
Any tips in case I have to meet him with my parents?

It seems that for whatever reasons this person plays an important role or figure in your life. you should try seeing it positively! I believe honesty is the best policy. So maybe if you tell him that he makes u nervous because of the good reasons he does, then he'll take it as a compliment and your anxiety may go away when it is understood. This will help you not worry whether you seem anxious or trying to hide it.

I think just be honest and genuine.

Perfect idea! Thank you very much.