So I had a OnePlus 5 laying around and decided to flash pixel experience with twrp and everything was fine until I decided to update ota. Then it took me to twrp but it wouldnt let me do anything. It was just stuck in the loading screen. So I managed to reflash twrp and got it working again with factory reset but then whenever I went into twrp it never asked for a password even tho I had one. I also tried backing up but it kept failing so I took a chance and saw a video on how to flash derpfest so I wouldn't have to deal with its problems again and so I followed the instructions and downloaded the ROM to the device and wiped everything except the internal storage and USB storage so I could flash the ROM but when I attempted to flash the ROM it wasn't there. I just had a bunch of files with different names and so I attempted to adb sideload oxygen os and it looked like it worked but when I was about to reboot it said there was no os even tho I flashed it so I took a chance and rebooted. Now I have no os recovery or bootloader and I keep getting a bootloop with the OnePlus logo. Am I screwed and if anyone can plz help