If your financial situation improves significantly, then you may want to settle some or all of your debts earlier than planned. You should be able to do this, as long as your lender agrees.
Most, if not all lenders will agree to this, but many will require an early repayment penalty charge. This makes up for some or all of the interest that they would go onto to lose.
Check the terms of the agreement you signed, as that should contain details as to how much you will need to repay.
To find out more about this, take a look at out Secured Loan Debt page.