Beat the tutorial no problem. Didn't get touched once. Chose easy mode and immediately had two ghosts attack me. The blind feature can only hit one so the other one just suctioned onto me.  As if that wasn't bad enough, that same ghost just hovered over me during my invulnerability phase so the moment I  became vulnerable it stuck to me again. Over and over until I was dead. I fired two flashes off but they went past her because she was literally on top of me. Maybe make it so the damned ghosts don't hover over you like fucking homing missiles while you are invulnerable so we have a goddamned chance, please? 

the best trick I learned is to stand near the door you entered so all the ghosts will spawn in front of you, then flash them once they bunch up (varies on room type, but works well for the first floor). once you suction them, move backwards, and if there's a pillar or table, use it to stop yourself from getting dragged. you can also flash enemies through walls and tables, and suction them through walls and tables as well. ghosts also get suck on pillars and objects, so if you stand behind one, they become an easy target.

sorry if I'm mean here, but.. 

Just get good.