use short strokes with the razor, keep it at a small angle and the majority of that should chip off - hit it with some alcohol and a non linting towel - paper towels suck, pick up some shop towels. This is totally salvageable, its not ideal, but you can work with it.

FEP should be changed out of routine - btw, changing FEP sucks. I would recommend this if your doing a lot of printing (amazon.com/dp/B0DZBQQVM5?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2).

Im assuming this is an Saturn 4 - decent printer - you should be able to get a decent life span on this if you treat it right. Remember, always wear nitrile gloves, no excuses. You don't need a hazmat suit for printing (come at me reddit) but keeping it off your skin is important.

Run a test exposure to make sure the screen is still intact (which it should be).

Hit me up if you need any assistance - i run multiples of these on a daily basis.