Look, I have PTSD, anxiety, and a league of other issues because of my abuse. My friend suffers from the same thing, which is how we have been friends forever. Let me validate my opinion by saying I was minoring in psychology before I had to stop college for THE EXACT reason you stated... now, on to my opinion:
Personally, I'd find whomever is above him and let them know how he made you feel, possibly ask for corrective action against him. This is not a joke. This man is supposed to be there for people when they truly have nobody else to speak to. What if you were suicidal and he sounds so dang rude before you say that, that you don't say it? Then the worst could happen because the place you are supposed to feel safe is more of a roasting chair. I know that's probably giving you anxiety alone, but please think of others who will need help; you know that's what they will get.
Bottom line: no matter what your "issues" are, using that tone, manner, attitude, and making you feel unsafe, emotionally, is AGAINST every rule they are supposed to follow. When I studied psychology, the most important aspect of trust with a patient is respect. He has none.
Also, I have gone to a college counselor. Let me tell you that they aren't built for war. They are built to settle disputes in the head, but not war. It sounds like you have some PTSD, to me. Because I struggle with going into public, along with other thing you mentioned. There are times I think I am becoming agorraphobic. And you are not making it up or being whimsical, IT IS HARD to be in a social environment, or do very normal things that others would look at (like a crappy counselor) and think you are just lazy, or being dramatic. Many of the people they deal with at that age are pretty emotional, not mature, etc. But going through abuse changes you. It grows you up real fast. And I do not believe he is suited to handle, or even understand the depth of issues you face.
Please, please go to an actual doctor. Tell them your basic emotions, fears, and struggles and tell them you need something to help and you want a psychologist, or some credentialed therapist. They can prescribe you a medicine that will help work with therapy. Psych drugs are never fast, and rarely does the 1st one you try do the trick, but the great thing is, when you see a psychologist, they can work with the doctor on what they think you need, since they will understand the root of the issue more. Any real NP, psychologist, etc, will instantly see you need some intensive therapy. This does NOT mean you are broken and hopeless. This means you are brave. You took a step into battle to fight the war inside your head. The medicines are your recruitments and the therapist is your captain, giving you the pumped up speeches.
You've got this. Just, where you are going is not a good place to get help. Some helpful advice, if you find an office that has a psychologist in training, many times they will offer a discounted rate because they are not "offically" a PhD or what have you, yet.
I am sorry for the long post, but I get passionate about this. I will pray foe you and I hope you treat yourself well enough to get the help you DESERVE. Bless you.