East is sunrise. West is sunset. The sun will also always be slightly south and even more so in the winter (unless you're in the southern hemisphere then it's slightly north).
If your local area has some kind of landmark like a big tower, or a big lake, learn where that is relative to you and use it as a reference point. For me, I live near a big lake and it's always south of me. It might be easier for you to ask yourself "which way is the lake?" instead of "which way is south?" or whatever your landmark and direction happen to be.
You can download specific DLCs but I'm not entirely sure they'll be useable. It's worth a try. Here's how you do it:
So for example, the Pearl Jam Song Pack could be downloaded using
download_depot 205190 222139
Rocksmith's DLC SteamDB page: https://steamdb.info/app/205190/dlc/
If this DLC has been disabled as you said, this might not work, or you might need to make sure that Steam doesn't try to update the game (which would disable the DLC again). You can do that by browsing to ~/.steam/steam/steamapps/ (assuming you're on Linux, or just wherever your "steamapps" folder is on your PC) and find the file called
appmanifest_205190.acf
and set it to read only. That should prevent Steam from modifying any changes you've made to the game. Just remember to set it back to writable if you want to update the game again.The game might not recognize the DLC as I said, but you should be able to access the files anyway if that's all you wanted. They'll be in
../steamapps/downloading
at least until the download is complete, then it should try to apply the DLC to the game, which might cause the files to get deleted. I'm not entirely sure about that.