If was claimed as a dependent on taxes and was not given a deductible for my student loan that I currently pay on, can I find out how much I didn't receive?

Remember that the deduction for paying student loans is only for the interest you paid, not the principal.   Going forward, if you are not a student in 2022 and you are paying your student loan payments yourself, you will be able to use it on your tax return.  If you have income over $4300 and are not a student you cannot be claimed as a dependent.

And.....entering the interest reduces the amount of your income that you pay tax on.   It is not a refund.

STUDENT LOAN INTEREST

Only the person whose name is on the student loan and who is legally obligated to pay the loan can deduct the student loan interest. If you co-signed then you are legally obligated to pay if the primary borrower defaults or does not pay.    If you did not sign or co-sign for the loan you cannot deduct the interest.

You cannot deduct student loan interest if you are being claimed as someone else’s dependent, or if you are filing as married filing separately.

The student loan interest deduction can reduce your taxable income by up to $2500

There is a phaseout for the Student loan interest deduction, which means the amount you can deduct gets reduced when your modified adjusted gross income hits certain income levels and is even eliminated at certain income levels -  

•If your filing status is single, head of household, or qualifying widow(er), then the phaseout begins at $65,000 until $80,000, after which the deduction is eliminated entirely.

•If your filing status is married filing joint, then the phaseout beings at  $130,000 until $160,000, after which the deduction is eliminated entirely.

 Enter the interest you paid for your student loan by going to Federal>Deductions and Credits>Education>Student Loan Interest Paid in 2021 (Form 1098E)