i don't know from where i should start, after some time i was playing all became bugged, shipyard doesn't work, research doesn't work properly, some research works, some others not, when i was trying to save and exit the button to save and exit didn't work so i lost time...

Is there a way to delete my previous saves? They just kinda clutter up the load game screen.

I tried 2 games and what happened is that I ran out of fuel super fast. I order new fuel but it's taking forever to arrive. But ok, I guess it's going to come and I can buy some research in the meantime. But then the pirates attacked both times. The tutorial said that guards will come to my protection but no one came and I got destroyed both times. So I figured maybe I should defend myself, I got some turrets and missiles but I don't know how to use them. Can someone write out some early game advice? Step...