How to do change my designation as self employed- I'm not. I'm a federal employee and work on the side

If you worked on the side and did not receive a W-2 for that income, by default you are self-employed. You would need to enter that income on Schedule C Profit or Loss from Business.

Use these steps to enter your income not reported on a 1099-MISC (for example, on a tax summary when no 1099 is received:

• On the top row of the TurboTax online screen, click on Search 
• This opens a box where you can type in “self-employment income” (be sure to enter exactly as shown here) and click the magnifying glass
• Click on the blue “Jump to self-employment income” link
• At this point, you can Edit the business that you have already entered, or click the Add Another Business link to enter information for a new business
• Edit the Business Income section to see options for entering General Income
• Under the General Income section, enter any income from sales or services that weren't reported on Forms 1099-MISC