do you feel that ethereum is very slow now? only sending ethereum with gwei 11 and gas limit 21000, in the calculator at ether gastation takes 40 seconds. However, until now (2 hours) it has not been pending, and even my previous shipment has experienced the same thing (five days still pending)
do you think it's only for a moment or did I make a mistake?
If you were using 11 gwei in your transaction when the eth network very busy, then you weren't using enough gas.
Don't rely on ethgasstation website to decide the gas fee, use
https://etherscan.io/gastracker instead, it is more accurate.