The OP is clearly confused and lacks basic understanding because he seem to believe that his private keys and seed phrases will weaken or deteriorate over time, so he thinks they need "maintenance".   No wonder so many users lose their coins due to their own stupidity!

But this is not the case, as long as the keys and phrases are stored securely and backed up properly. In fact, private keys and seed phrases can remain valid and usable indefinitely, as long as they are protected from loss, theft, or damage.