Your school or dental assistant program, may qualify as an Education Credit, per the IRS, "An eligible educational institution is any college, university, vocational school, or other postsecondary educational institution eligible to participate in a student aid program administered by the U.S. Department of Education. It includes virtually all accredited public, nonprofit, and proprietary (privately owned profit-making) postsecondary institutions. The educational institution should be able to tell you if it is an eligible educational institution."
If the school or program falls within this IRS eligibility information, then the institution or school would have issued you a Form 1098-T, as a result. I would suggest confirming that with you school first.
If so & once confirmed, you would need to click Federal Taxes, then click Deductions & Credits, look for Education, Expenses and scholarships.
