hello.I don't think you don't have ability of communicating.what you wrote now is completely well thought and I see a person not different others.If you can write like this it means you can also talk the same.you just need to raise your self esteem and be very calm.I understand when you say like ''frozen brain'' .It is just your nerves.and everything will be ok.for ex I will say.I was talking to people I mean communicate normally.one day my mother got ill.and one day she was very very bad so I called ambulance.and I was shocked so I could not talk.I was just standing like a zombie.and after that in a very long time I could not tell what I wanna say.I was talking and stopping.I told you this that you analyse for yourself what is the reason .when you find the reason you can overcome it.now I communicate as before.but nobody helped me.I just make myself be as before.praise to God you are not alone.PC is a great place for support.and also you can write me when you want.have you been scared seriously in your life?this also can be a reason.or you are suffering from this always?however whatever it has begun you can always overcome it.you need strenght.
It is nice topic that you like to talk about books art and so on.every normal person would be glad to talk to you.if you have not met good and interesting people that doesn't mean they don't exist.but kind people are few.