Why cant I claim an educational tax break for my daughter who is my dependent and I have 1098-T of $16,500?

https://www.irs.gov/help/ita/am-i-eligible-to-claim-an-education-credit

AMERICAN OPPORTUNITY TAX CREDIT

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-credits-deductions/eligible-take-american-opportunity-tax-credit/L8ZQFKvLe_US_en_US?uid=m6efibfz

AOC will be shown on line 29 of your Form 1040

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-credits-deductions/qualified-education-expenses-american-opportunity/L4y6Sjdx6_US_en_US?uid=m6efmvbn

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-credits-deductions/qualified-education-expenses-american-opportunity/L4y6Sjdx6_US_en_US?uid=m5zq0i8s

EXAMPLES OF EDUCATION EXPENSES

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-credits-deductions/examples-education-expenses/L4qQ5a1nC_US_en_US?uid=m6egfhmq

IS ROOM AND BOARD DEDUCTIBLE?

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-credits-deductions/room-board-deductible/L2lr8ryp2_US_en_US?uid=m5zq7xdl

Are there scholarships in Box 5?   Two available education tax credits are: the American Opportunity Tax Credit   the Lifetime Learning Credit.   See this chart for qualifications for each.  Check the income limits.   

At the end of the education interview, TurboTax will usually tell you why you don't qualify.  If you don't qualify because your income is too high ($90K, 180K married) it will sometimes tell you at the beginning.

Otherwise, you haven't provided enough info to tell you why.  Check the rules yourself at the links provided in the other reply.