I accidently erased everything from my HDD. Can’t use internet recover

Hello everybody

So, yesterday i wanted to re-install my 2018 MacBook Pro, but by accident i did’nt just ‘erase’ my partitions, i actually removed them by using the ‘-‘ (minus button) in disk utility. Now my Macbook won’t start internet recovery, which is very strange, it always gives error ‘-1008f’, and i tried several different networks (ethernet and wifi) but still.

So i thought i’d make a bootable USB stick with macOS Big Sur on it, the stick should work fine but my Macbook apparently does’nt accept it… when i press the Options key while booting, i can select the USB stick but when entering it just goes into internet recovery again… very strange issue, and all the hardware from my Mac should be working fine, everything workes untill i erased the partitions. I don’t know what to do anymore, and i hope someone here vould help me? I will add a few screenshots.

Thank you so much in advance

Nick