Are you recharging and cleaning the vat window after every print?
When I finish a print, I remove the vat and place it on an angled surface so the resin settles below the window and the window is exposed. Before the next print I gently squeegee and wipe the window with a microfiber cloth that is lightly spritzed with Iso Alcohol. If it has been more than a few hours since the last print, I stir the resin in the vat (avoid the window while stirring!). That's it. I rarely need to filter the resin.
As RobertH said, you don't need all those supports. That said, all down-pointing (over 90 degree angle) elements must be supported and always preview the print after slicing to be sure everything is good. I suspect the first row of prongs are down-pointing because that is where the resin artifacts (film to you) are.
Good luck and Happy New Year!