Nobody audits an independent worker until something goes wrong. Then everything gets looked at, all at once, backwards. This is the list someone would go through. Go through it yourself first — on a quiet afternoon, on your own terms.
Pop your email in and the questions open. At the end you'll get a score, a personalised list of what to fix first, and the printable version to keep.
These help me build the right things for people in your situation. Nothing else, and then it's all yours.