Sallie Mae Loan debt is not going down after 6 years of on-time payments?!?

In 2005, I got a Sallie Mae loan for $8,959 at an interest rate of 13.25%. I start making payments on it in Jan of 2007, always on time, and always more than the minimum amount (sometimes nearly double). Today, I check my loan balance and I see that my loan balance is $9,288.96, several hundred dollars MORE... show more In 2005, I got a Sallie Mae loan for $8,959 at an interest rate of 13.25%. I start making payments on it in Jan of 2007, always on time, and always more than the minimum amount (sometimes nearly double).
Today, I check my loan balance and I see that my loan balance is $9,288.96, several hundred dollars MORE than the original loan amount. I've calculated up all of my payments over the last 6.5 years and these are the numbers I've come up with:

Original Loan Amount: 8959.00
Outstanding Principal: 10648.62
Interest Rate: 13.25%
Loan Date 11/16/2005
Repayments Started: 1/13/2007

Over the last 6.6 years:
Total Amount Paid: 12176.07
Amt Applied to Principal: 2973.04
Amt Applied to Interest: 9154.67

Current Loan Balance: 9288.96
Capitalized Interest: 2546.00

This just doesn't seem right that such a huge chunk of my payments are going toward interest, and that after 6+ years of payments, I still owe so much on such a small loan. Had this been a car loan for $10,000, it'd had been paid off years ago.

Is this normal or should I seek some sort of financial consultant to help figure out why this thing isn't going down?
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