If you are a "W-2 employee", then you won't be able to deduct your employee business expenses - the 2017 Tax Cuts and Jobs Act eliminated deductions for unreimbursed employee business expenses (with some limited exceptions.
See Employee Business Expenses for a more detailed explanation of the subject.
Even if your compensation is based on a commission formula, you are still an employee. Your employer should still be reporting your commission-based income on your W-2, and withholding/payingemployment taxes accordingly.
