Ender 3 S1 can't load filament

I’m pretty new to 3D printing and Ender 3 S1 is my first printer. First 2 weeks I had minor issues but was able to fix it searching online.
But sadly last 2 days my printer started printing pretty bad and I had sticking and extrusion issues. I followed a couple of YouTube videos and disassembled the printer head. There weren’t any clogs in the nozzle. But I can’t feed filament to the printer now. I cut 45 degrees and press the pedal when I’m trying to load filament but somehow it doesn’t go through. So it doesn’t extrude.
While trying the print, printer head moves like it’s printing but filament doesn’t come out at all.
I would love some suggestions