These are some of the most common questions I am asked as a Notary Public
You can go to a notary who knows your personally or get a credible witness who has valid identification to vouch for you.
If the document is an acknowledgement yes, if the document is a Jurat no.
The notary is Not an attorney and is not allowed to advise you. You ask the person requesting you for the notarization if they want an acknowledgement or a Jurat.