how can i make deduction for my expenses
Expenses for what, exactly? Are you self-employed? If so, you need online Premium in order to prepare a Schedule C for your business expenses.
You can enter 1099NEC or cash Self Employment Income into Online Deluxe but if you have any expenses you will have to upgrade to the Premium version.
Where to enter expenses in the Online Premium version
https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/enter-self-employment-business-expenses-like-home/L1k6HJY4A_US_en_US