Yes, you will need to change them. A W-2 reports employee income and is treated differently than your self-employment income. A W-2 (not a 1099-MISC) would have expenses reported against it on Form 2106 instead of the self-employment section.
It seems a bit strange you would receive a W-2 instead of a 1099 for contract work, but it's not impossible. (If you received both from the same employer, then you would either split the expenses against both, or you might be able to justify just counting them against the self-employment if the nature of the W-2 has few or no expenses against it, like a taxable reimbursement for expenses you paid for).
If, on the other hand, you only received a W-2, and have no self-employment income besides what is reported on the W-2, then you would not claim expenses for self-employment income. You would report the expenses on Form 2106. Here are two FAQs to help you to understand how to do this:
What expenses may be claimed:
https://ttlc.intuit.com/replies/3300622
Where to report in TurboTax: https://ttlc.intuit.com/replies/4800418
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
