Education

Two Issues: residency and 1098-T actual taxable amount

Let's start with the 1098-T - $1500 difference seems easily made up with books and other supplies. Depending on college requirements and your living arrangements, internet and other expenses may be a deduction. See Qualified Education Expenses - Internal Revenue Service

You may not actually have any income to report to Oklahoma or federal.

Residency - based on driver's license, voting, establishing social connections, making a new home. Be sure you have TN license now.

OK  - if your income exceeds the standard deduction, you will file a part year return - it will be based on your federal AGI and prorated based on your OK income. 

You will file 511NR for part year and non-residents.  OK forms for 2024 states:

• Standard Deduction: If you did not claim itemized deductions on your federal return, enter the Oklahoma standard deduction on line 11. 

• If your filing status is single or married filing separate. your Oklahoma standard deduction is $6,350. 
• If your filing status is head of household, your Oklahoma standard deduction is $9,350. 
• If your filing status is married filing joint or surviving spouse, your Oklahoma standard deduction is $12,700.

Don't use the numbers from the old link listed in another answer.