After you file

Looks like they missed you. I believe they mailed out the final "second stimulus" checks/cards last week. 

When you fill out your (Turbo) taxes, it will ask you (twice, I think) about how much you got from the stimulus. Just indicate that you missed out, the software will include the relevant forms to the IRS, and you'll have your stimulus -- with your refund -- in about 21 days.  Good luck!