How complicated is running a Validator node?

Warning: don’t come at me with your scammy DM’s because I’ll waste both of our time(s) by pulling you along until I’m bored.

Does anyone here run a node? I’m not looking for specifications or requirements but my questions are:

Is it complicated? Is it risky?

Is there a chance I could lose any ETH?

Anything I should watch out for?

This is my life savings, already in ETH, but it’s just been sat there in a wallet for so long that I need it to start earning something