Thank you so much! It sorted everything!

I sent 28 pounds worth of bitcoins all at once from localbitcoins website wallet. Its my first time that i decided to give a chance for this currency so im really new to it.. Could you explain what are satoshis? And every step how i can sort it out? Thanks a lot

Hello guys, im completely new to electrum and it might be stupid thing i don't get. I put some bitcoins into my wallet and tried to send them, but the mining fee is so huge that it must be some kind of mistake. For example if i try to send 0.0089 the fee i get is 0.12656. Could you help me to sort it  out, cuz it feels like i just lost everything i put there, huge thanks!