Seems to me you didnt read enough info about the game.
People will kill your fleet when you are asleep most of the cases if you dont get your ship out of the planet, cause its the best time since you cant move it lol,its kinda expectable and thats why you need to fleetsave when you are not in front of the comp.
The more info you know about any game the better you will perform , the better you will enjoy the game and the faster you will skill up.
There all the info you need on these forums and it is sticky too so no one will miss it

and if you asked top rated players Im sure most of them will help ya as myrsee said.