I find psychiatrists scary too because the stuff they prescribe us can change our personalities (maybe that's a good thing in my case) or we can become addicted to it.
I've tried to be more cooperative due to my attempt. I know that I have a certain amount of paranoia about trusting the intentions of institutions who profit because of my illness but I still have to guard against a second attempt. I am still sane enough to know that it is a balancing act. Unfortunately, many of the things psychiatrists prescribe just cover-up symptoms but never really get to the root cause. Plus, some things can't be fixed.
So the fact that you are anxious about going just tells me that you understand the consequences of all the medications that have and will be prescribed to you. You would sleep better at night if you were an ignorant, uninformed consumer!