yes you are self-emplyed. that's what getting a 1099-misc vs a w-2 means.
you may want to go to IRS website and look into free file which is really free if you qualify.
If you are working with the basic version of TurboTax, you can try entering your information directly into Schedule C. Go to the Forms feature and see if you can open Schedule C. Fill in the header. You can find a list of codes on the IRS website for box B in the instructions for Schedule C. Under Part 1, your $608 should be typed in to lines 1, 3, 5, 7, 29, and 31. I don't know if TurboTax will automatically populate the rest of the forms, but the $608 should also appear on Schedule 1, line3, and Schedule SE, lines 2 & 3, and it should also generate a form 8995-A. Be sure to calculate lines 4 -6 on Schedule SE, which should give you a deduction on line 14 of Schedule 1, which should also appear on your 1040.
You can use Free File:
If you qualify to use it, there is another full-featured free version of the software:
Try Free File:
You qualify if your income was $36,000 or less, or $69,000 or less if active duty military, or if you qualify for Earned Income Credit
If you switch to Free File you must create a new account and new user ID.