No one can see your tax return. We do not know what lines you are seeing these amounts on or if you entered your income correctly. Did you e-file yet?
The 1099NEC is self-employment income----where did you enter it?
https://ttlc.intuit.com/questions/2903027-how-do-i-report-income-from-self-employment
It sounds like you entered your box 2 from your W-2 twice somehow if the total tax withheld on your W-2 is $8703. The number you are saying you see for tax withheld ( $17406 ) is exactly twice that amount. Go back and look at what you entered in Federal>Wages and Income for your W-2.