How do I polish my interior concrete floors?

Six months ago the concrete in my condo was acid cleaned, etched, and then painted with standard flat concrete paint.

I would like to find instructions for a ‘Do It Yourself’ project — removing the concrete paint via grinding…and then polishing the concrete floors in my condo.

I don’t want to attend a class or seminar…just detailed instructions on what to rent / buy and what to do! Any pointers…?