Do you mean that you received a 1099NEC from the business where you worked as a bartender? If you received a 1099NEC, you were not an "employee." The "NEC" part means "non-employee compensation." You worked as an independent contractor and are considered to be "self-employed" by the IRS. The business where you worked issues a 1099NEC to you.
If you have self-employment income for which you will pay self-employment tax for Social Security and Medicare, you will need to use online Premium software or any version of the desktop software download so that you can prepare a Schedule C for your business expenses.
https://ttlc.intuit.com/community/self-employed/help/what-is-the-self-employment-tax/00/25922
https://turbotax.intuit.com/personal-taxes/self-employment-taxes/
https://www.irs.gov/newsroom/worker-classification-101-employee-or-independent-contractor
A 1099-NEC is used to pay an independent contractor. This might be appropriate if you bartended a wedding as a side gig, whether or not it is you usual job. However, if you worked in a bar at a fixed location according to their schedule and rules, you were probably an employee and they are paying you incorrectly (and cheating you out of taxes and benefits) by giving you a 1099 instead of paying you by regular paycheck with a W-2. There is more information here, including how to file your taxes if you think you were misclassified.