You go to commit a crime. How did it go, you think? Well, I thought it went okay (おか). Imagine yourself committing a crime and it going just okay. Not great, not bad... meh. Okay.
I'm going to confess to the sin I committed during the war.
I don't think it's worth doing if we have to break the law.
Viet is incapable of making mistakes. For Viet, nothing is impossible.