If you're wondering why your interest rate is so high on your student loan, there are a few things to consider. For one, interest rates on student loans are generally higher than other types of loans because they're considered riskier. Lenders view students as more likely to default on their loans than other borrowers, so they charge higher interest rates to offset that risk.
Another reason your interest rate may be high is if you have a private loan. Private lenders don't have the same government subsidies that help keep federal loan rates low, so they tend to charge higher rates. If you have a private loan with a variable interest rate, it could also be that market conditions have caused rates to increase since you first took out your loan.
Whatever the reason for your high interest rate, there are a few things you can do to try and lower it. If you have a federal loan, you can explore repayment plans that tie your monthly payments to your income (so they're more affordable) or extend your repayment term (to make monthly payments smaller but pay more in interest over time). You can also consolidate multiple federal loans into one new loan with a lower overall rate.
For private loans, consolidation may also be an option but it's not guaranteed to lower your rate. And while refinancing isn't an option for federal loans, it may be possible for private loans - though this could mean extending the life of your loan and paying more in interest over time. Talk to your lender about all of these options and see what makes the most sense for you given your individual circumstances.