First time c section

Hello :) I am scheduled to have my first c section August 21.... As we get closer I am getting more and more scare... I don't know what to expect, or things you wish people told you about a couple section, options and pain.... And (this is weird) how hard is it to go to the bathroom after... Sorry I have heard a lot of how bad it is to try and use the restroom after so I am just wondering TIA