Generally, you cannot deduct job-related education expenses as an itemized deduction. Certain exceptions apply. See Tax Topic 513, Work-Related Education Expenses. To determine if you qualify for any education credits for the work-related educational expenses you incur, refer to Publication 970, Tax Benefits for Education and Am I Eligible to Claim an Education Credit?
Because you received the additional compensation as wages, you're treated as paying the tuition yourself out-of-pocket. To determine if you can claim the educational expense, and, if so, where to claim it on your return, review the rules for the lifetime learning credit.
Also review your eligibility for taking the expense as an adjustment to income for a qualified performing artist and/or fee-basis official on your tax return. See the Instructions for Form 1040 (and Form 1040-SR) or Instructions for Form 1040-NR. You may need to attach Form 2106, Employee Business Expenses.
No. Your parents cannot claim the deduction for student loan interest on their tax return because you were not their dependent at the time they took out a student loan for you. However, you can claim, subject to certain limitations, the deduction with respect to the loan that you took out for yourself (assuming that you meet the other requirements for this deduction).