@BandNerd1002 - Not to worry. First, let’s get your config.js off of your SD card.
Using the Windows File Explorer, browse through the boot drive and look for the config.js file. Copy that to your computer. (if it turns out that you can’t find this file, no worries. We’ll recreate it later).
If you were able to backup your config.js file, great! If not, no big deal. At this point, I suggest you follow the Complete Setup Tutorial. It will walk you through prepping your SD card and getting your Magic Mirror reinstalled.
A couple things to note about the tutorial:
It’s Raspian Stretch now. Download the full version with the recommended software.
The command to clear out some installed & unnecessary software will fail due to some of the listed software not being included. Try running the command one application at a time and skipping the ones that aren’t found.
Once you have your mirror back up and running, you can copy your config.js file back to your Raspberry Pi. Then you just have to re-clone and re-build all of the modules you had downloaded.
