They're not going to judge you for making mistakes because they've probably made mistakes in their own writing too and the purpose is to find them and help each other.
You said you were ashamed of your origin, you were ashamed of your poverty, you were ashamed of your accent and the possibility that you might make mistakes.
I feel like this is kind of related because the possibility of making a mistake when you're talking in English can be very scary and it can lead many people to not even want to try to do something new.