Have you started a return yet? What questions do you have? Sorry it is too late to file or start an Online return. You need to use the Desktop program and mail your return now. You will need a full Windows or Mac computer. You can buy the Desktop programs here,
https://turbotax.intuit.com/personal-taxes/cd-download
If you are using the Online version and ready to file you have to print and mail it. How to mail a return from the Online version
https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online/01/26258
Be sure to attach copies of your W2s and any 1099s that have withholding on them. You have to mail federal and state in separate envelopes because they go to different places. Get a tracking number from the post office when you mail them for proof of filing.
You can still post questions here in the user forum when you are using the CD/download software. You say it is your first time to file a tax return--so it is likely you will have some questions. Post clear and specific questions here without any of your personal information like SSN, email, etc.