If you think like that, that’s fine. Your loss, not mine. I am me, and I have no desire to change that.
Understanding these ideas will change you as a person. Not just your English. But everything.【I still don't know what "as a person" here means.】
I’m not sure. That’s for you to choose.【I only have one way to express this meaning. That is, that's up to you. I don't know the others.】