u/Dangerous-Side4449

So Im semi new to resin printing I was using a schools before I bought a mars 5 ultra a while ago and have now set it up on my boyfriend’s balcony. We live in Atlanta so I’m only printing at night when the temperature is good and then removing any of the resin directly after I print so that nothing could cure during the day time. I also used a cardboard box and taped black trash bags around it to keep UV out. Now i’m worried if I scratched the FEP badly i used paper towels and alcohol but it seems to look very cloudy should i just put a new one on it? What’s the best way to clean the FEP each time? And is my setup okay or should i rethink it?

Thanks so much in advance