Ethermine doesn't charge you any fees when they pay you. Usually you are paid when you meet the min withdraw, which I think is 0.01 ETH and this payment is sent max once a week. They include the transaction in their pending transaction when someone on the pool finds a block and its sent with a 1 Gwei fee which is almost nothing.
So it was free sending the 0.01 ETH into your own wallet but when you send it to your Shakepay exchange you need to chose the lowest possible fee to get it confirmed within a few hours. Use this as a guide.
https://etherscan.io/gastrackerCurrently for a simple ETH transaction its $4. Which in my opinion is fairly high. Hence mine for a few months and then just do 1 transaction and then your fee will be small relative to your transacted amount. Its not worth sending any ETH or BTC payments which are 2 figures.