Yes, you can pay more than your minimum amount due every month. The payment will first be applied toward interest currently owed, any principal currently due, and any assessed late fees. The remaining payment amount will be applied toward the outstanding principal. You can also set up auto-pay to pay a higher monthly amount. You can find the details here.
By doing this, your principal may decrease and your following monthly payment will be adjusted accordingly. Please log into your Launch portal to know about your repayment details.