Rev. Proc. 2020-46 self certifying letter

Hi, I need to fill out the above, as I accidentally transferred my money to the wrong account.   Do I send this to the IRS via mail, or can I file electronically?

My broker is asking for a copy as well. 

Do I need to send any other accompanying documentation to the IRS?

 

Lastly...my understanding is I should pay the early withdrawal penalty upfront, in order to get a refund of that penalty.  Is that correct?  That is, I need to "rollover the entire amount" i Turbotax.

 

Pls advise if I'm doing things the right way here?  I'm having a very hard time finding someone with experience regarding 2020-46. Thank you.