I received my return and then added a W2 I got in the mail late, I STILL haven’t received that check. Status is ready to mail for 6+ weeks!!!! HELP PLEASE

You filed a tax return, it was processed and then you added a W-2?  Did you prepare a Form 1040X in order to add that W-2?  If not, then nothing you did was sent.  A 1040X just be printed, signed and mailed by YOU--TurboTax does not mail it for you.

The only way to file an amended tax return is to prepare a 1040X and print, sign. and mail it.  If you did something else, like try to e-file a change, the changes were NOT TRANSMITTED.

You can amend a tax return after it has been fully processed and you have received your refund.  You must work from your return exactly as it was when you first filed it. If you changed anything, change it back to the way it was when you originally filed it, before you follow the steps to amend. Follow the TT instructions to amend a tax return:

https://ttlc.intuit.com/questions/1894381-how-to-amend-change-or-correct-a-return-you-already-filed?jump_to=answer_3288565

Wait about 3 weeks and you can check the status of your amended return:

https://www.irs.gov/Filing/Individuals/Amended-Returns-(Form-1040-X)/Wheres-My-Amended-Return-1

It will take about 3-4 months for the IRS to process an amended return.

https://www.irs.gov/filing/individuals/amended-returns-form-1040-x/amended-return-frequently-asked-questions