Two points: you are not putting your finances on your node, you are simply providing another copy of your finances on the blockchain that is shared across all the nodes

There is no need to provide redundancy, because that is a key thing about Bitcoin network it already has redundancy.

Your node will only download and validate a copy of the Bitcoin ledger.

Secondly, it’s ok for your node to come and go, the network doesn’t care. Just bare in mind that when your node starts up it will take time for it to sync to the point where it is current again