broken

So I've gone ahead and done something very stupid. Whilst pushing in the USB3 cable into the motherboard's USB3 header, I managed to push and destroy two of the pins, one of which completely snapped off, as so... So now the USB slots on the front of my case no longer work :( My question is...

I'm having a problem with the MSI X370 Gaming Pro Carbon BIOS menu. I can boot up "yey" and computer works fine. But I can't properly do anything in the BIOS screen. Sometimes it's hard to catch the BIOS menu hitting delete, it just has loads of lines going across the screen and goes straight...