Underpaid Gas Fee

I sent some Eth in between two of my wallets. I believe that I underpaid the gas fee and it's been pending for about 4 days. What can I do to fix this?

Link to the transaction:

https://etherscan.io/tx/0x8aabfcd3d52f533462bed19c808f90ff328cd3c36dd7d9ecd898f9c12b0d59fc