Extruder breaks off filament. Dont know what to do.

Okay so. For about 3 weeks ive been trying to fix this. My ender 3 v2 keeps breaking and squishes (with black marks) inside the extruder or just when it enters it. What I tried to fix; i got a new extruder arm (those red aluminum ones), lowered the print speed, changed temperatures lower and higher, changed the ptfe tube, changed the brass connectors in the extruder and hot end(sorry english isnt my first langueges so i forgot the name of it). Cleaned out the hot end, changed out the nozzle, re leveled the bed. Now i’m using the “move E” option and the machine pushed out 200mm with no issue. Whenever im printing the gears just click and go back really fast a click. If anyone can help, it would be amazing.