She realised she was shy only after starting a business that required talking to people, and the post she wrote about it is unusually exposed. Standing in a group giving one word answers, hiding behind whoever she came with, waiting for strangers to give up and walk away. Daphne Howell then separates shyness from low self-esteem and explains how the two feed each other.
The creativity post is practical in a way that word rarely manages. Read everything. Do one creative thing daily even if it amounts to doodling. Draw for two minutes. Photograph anything. Describe a thing using all five senses and ban the easy adjectives.
There is a piece drawn from a comedian's principles for success, starting with becoming the best at whatever you do and refusing to quit on the third attempt.
Read the shyness post if speaking up has been the thing holding your business back.