No you can't do it that way. So start over and delete the net income you entered. I would delete that schedule C business and start over. You need to enter Gross amounts. Turbo Tax will fill out schedule C and figure your Net Profit or Loss.
To report your self employment income you will fill out schedule C in your personal 1040 tax return and pay SE self employment Tax. You can enter Self Employment Income into Online Deluxe but if you have any expenses you will have to upgrade to Premium version. Or any of the Desktop programs. But you will get the most help in the Home & Business version.
How to enter income from Self Employment
https://ttlc.intuit.com/community/self-employed/help/how-do-i-report-income-from-self-employment/00/...
Where to enter business expenses
https://ttlc.intuit.com/community/entering-importing/help/where-do-i-enter-my-self-employment-busine...
