I Have make a mistake writing down my seed Phrase

[rbeugie04]

Is there a way ot look en wirte it down again ?

[guggero]

No, there is no way. The seed phrase is hashed to arrive at the xpriv (extended master root key), which is then stored in the wallet database. That process is not reversible.
But you can extract the xpriv with tools like chantools showrootkey --walletdb .... And you can restore lnd from an xpriv in the future. But since it's a long and cryptic string, it's harder to back up.
So if you want to be on the safe side, I'd close the channels and move the node to a new seed that you can properly back up.