My mind is blank during conversations.
I don't know what to say. I cannot say anything.
I just shut down.
I am taking therapy but I even cannot talk to my therapist.
What's wrong with me?
Is there anyone same as me?
Please give me advice.
Hey, adding to what Zonebox said, once you are able to start up a conversation, you will still experience this right in the middle of talking. Especially when they ask you to repeat something, tell a story or any kind of performance. In those cases most people just smile and say, hmm I forgot what I was going to say. But for someone with social anxiety, they think everyone is now watching them intently, wondering whats wrong with this weird guy or girl, and the anxiety grows exponentially. So you need to prepare for it before it happens. If you can get it deep in your memory that when this happens I going to do something, or say something to pull me out of the blank space I'm in, that will really help. Heres a couple things you can choose from and I'm sure you can come with some better ones you like.
You can cough or clear your throat and say excuse me. That will usually break up the mental fog. You can just smile and say, sorry I forgot what I was going to say. And because this happens to everyone all the time, they will empathize with you. And if it happens again, do it again. They don't know whats up with your throat, as its common to have something in your throat. Maybe you have a migraine and need a second. Same goes for like shaking hands, you can say your blood sugar must be low. And also remember to breathe.
Learning social skills is very important for communication. Interestingly enough, one of the first things you learn is the best communicators are the ones that do the least amount of talking. Instead they are very good at listening and making the other person feel like they have been heard. The book winning friends and influencing people is a must read.
Ultimately though, you shouldn't care what people think. If they think you're being weird, that doesn't mean its true. That is the main thing to work on, but those are some things you can do in the meantime.