>>3198494It's a little hard, but mainly you gotta keep several things in mind
1. Distance. Some attacks will hit you if you're too far away or too close.
2. Find a weapon you're comfortable with. Attack power isn't everything. I beat almost the whole game with the just the pea shooter. I had to use other bullets on a few bosses just because I noticed that it wasn't working
3. Focus on patterns. If you can do this and recognize what attacks will be coming towards you and at what time, it'll help you plan in advance as to how to dodge
4. Git gud. The game does require skill and patience, and will frustrate anyone