I've completed and efiled my state and federal taxes. Is there anything else i need to do

No - once you have e-filed your taxes and they have been accepted there is nothing more you need to do. However you might want to print and save a copy of your returns for your records. You might also want to give a review of TurboTax and login to the community to see if you can help others who are having questions completing their taxes.

Always print a copy of your completed tax return for your records, and review it carefully before e-Filing.
You will need it if you are audited by the IRS, to contact the IRS, or to amend if a TurboTax update changes your return or for any other reason,

AND, to find your AGI next year.

@kurtmueller