I hate confrontation so much that the only time I have to send a follow up email on calls or raise my prices, I do not open my email to see what they have written.
Full disclosure: Above happens rarely, and in all those rare times too, the response is a positive one.
Which brings us to the point: We all are fearful for no reasons. It is encoded in our upbringing.
Just do the right thing, and know that being anxious won’t change anything. Might as well be calm. And watch it does to your biochemistry.