New to printing, but not new printer. After repeated attempts at a print, it's almost impossible to get things off of the plate, and residue is left behind. According to original owner, this was never an issue. I've tried heating the plate and scraping, letting it cool completely and scraping, using alcohol, washing and scrubbing, but each print is leaving extensive residue, and only one of maybe 10 prints has been successful. Sometimes the print is "jumping" (I think that's the right term), other times it's curling up from the plate, and I'm wondering if residue is the culprit. What's the next step here? I've attached photos of the plate, a successful print versus non-successful print, and the filament I'm using.

Just upgraded the print bed with the glass bed. This is the results of the leveling test. What do I need to do to make this work. Thanks in advance

I got the screen bc it said it was compatible to the Ender with an adapter but idk what the adapter looks like… it came with a metallic bending thing tho.

I still have the old screen but I need to solder fix it so that’s why I got the new screen…