You have multiple reporting: 6% penalty, early distribution, income tax on the earnings.

Are you using the web at all, or simply asking everything here?

I like these articles that are not written by the IRS, but you should also be using Pubs 590-A and -B, of course:

https://www.investopedia.com/articles/retirement/04/042804.asp#how-to-fix-an-excess-ira-contribution

https://www.taxact.com/support/1280/2016/ira-or-roth-ira-excess-contributions

Also, all of the investment brokerages provide reference materials: Merril Lynch, Wells Fargo, Schwab, etc.