You don't have to have Expenses for your 1099-Misc income. If this was a summer job and not a continuing source of income, indicate that this is 'not like my main job' and that you have 'no intent to make money' (screenshots).
This will just add the income to Other Taxable Income for you, and you don't need to add any expenses.
Type '1099misc' in the Search window, then 'Jump to 1099misc' to get to the 1099-Misc Summary so you can EDIT your entry.
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