Yes ETH mining is very profitable atm...
try this calculator to work out electric costs.
https://whattomine.com/coins.
e.g. if you have an AMD RX 570, put 1 in the box next to where it says 570, then click on 570..then enter your electricity cost under 'cost' then click on calculate..
You can also try this calculator...
https://minerstat.com/hardware/gpus
RE: Simple Windows Ethereum mining for beginners 2021 - Newbie level