Therapy?

I was able to bump up my visit with a psychiatrist, and I'm terrified.
I don't know how to talk to a stranger in person about these kinds of problems, I'm better at typing it out. I don't know if I'll be able to open up completely. I can't even do that with my husband, let alone a complete stranger.
I'm scared of judgement, I know this is their job, but this is one of my problems. I'm scared I wont talk about certain details and they wont know how to help..I'm not sure on how to even begin talking about my problems.
Any advice?

Hm.
I have the same problem, I guess what worked for me is not expecting or being expected to open up 100% right away.