My child attended school in 2019. Tuition was paid with student loans. In 2020 I paid the loans with a 529 withdrawal. There's no 1098-T. How do I enter this?

Child is not a dependent in 2020. I was the recipient of the 529 payment. The amount was $13,493.43. Do I owe taxes/penalties on the $3,493.43 about the $10K loan allowance? How do I enter all this so TurboTax will compute it correctly?