Okay, so I was using the Carbon Rom (nightly 4.3) on my HTC One (m7att) and I wanted to try AOKP because I was having issues with it being a daily driver. I went to AOKP's website and I tried to find the version of Android in their latest Nightly for my phone. I couldn't find it, but I found a Youtube video implying it was 4.2.2. I then went and downloaded both the Nightly and the 4.2.2 gapps and flashed them.
From there, my phone became unusable and I wasn't able to access my SDcard via USB. I've had the issue of flashing the wrong gapps in the past and then I just re-flashed the correct one, but this time I'm completely unable to access my SDcard on my computer to put the 4.3 gapps onto it and to re-flash the correct zips.
I can't mount the USB in the TWRP options and when I plug in the USB into my device when it's turned on, my device doesn't come up. What the hell can I do? How screwed am I?