I need to file my 2017 tax returns before i can file my 2018 returns. i am getting about 10 grand back on my 2018 returns but i owe roughly $150.00 for my 2017 returns.

No you cannot file them together.  Each tax year has to be prepared and filed separately.  The online software is ONLY for 2018 returns.

Online preparation and e-filing for 2017 is permanently closed.

To file a return for a prior tax year

 If you need to prepare a return for 2015, 2016, or 2017 you can purchase and download desktop software to do it, then print, sign,  and mail the return(s)

https://turbotax.intuit.com/personal-taxes/past-years-products/

Remember to prepare your state return as well—if you live in a state that has a state income tax.

When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s.  Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS received the return.  If you owe for 2017 then enclose a check or money order with the 1040V form that will print out with the return.

Note:  The desktop software you need to prepare the prior year return must be installed/downloaded to a full PC or Mac.  It cannot be used on a mobile device.