My phone has no boot.img

[Cho]

I wiped my boot.img and flashed a different one via TWRP from this video,

, and forget to have abackup, even though it wouldnt have helped anyway cause i didnt have TWRP after that either. I can access the stock recovery and fastboot but i have no USB debugging enabled so i can't adb and my phone serial number doesnt appear under fastboot devices because it is no longer that device.

Please help, its been 2 weeks.