Can you convert the rest of the $5 to LTC so that you can sell all of them altogether? But I wouldn't recommend that because you might run the risk of LTC price dropping before you can sell then have about $9.90 worth of LTC which you can't trade... another option is you can deposit more just so you can buy more LTC then sell them. Or you can convert all of them into BNB as mentioned by the others. It can be selected once you view your wallet. Other than that, I guess you can only leave it there for now.