Thank you for review! Bad rating is also a rating.
As I mentioned in game's description : I suggest to start with Easy difficulty (it's default if you just press "Play" in the menu) to get used to controls because game was meant to be hard. On Easy difficulty there is only 1 enemy and starting "Goals" are not high. I don't know had you get your first power-up but game becomes more and more easier after completing each "Goal". I suggest you give it another try and begin with "Easy" difficulty for more relaxing and less punishing gameplay.
P.S. Also some of my play testers were mad about clicking all the time Mouse1 to shoot so I even added Auto-Shoot power-up which you randomly could get after completing your current "Goal" to make game after getting it even more easier/less struggling.