I finally did it. I finally have a Linux certification; technically two! After years of struggling with these tests (starting with a pathetic effort on the RHCSA and then a fail on the first attempt at LX0-103) I can actually tick this one off the list. Thanks to everyone who gave advice or pointed me to resources or even just had a word of encouragement.
WGU Classes Finished: GAC1, WFV1, UBC1, EUP1, EUC1, TCP1, COV1, CJC1, CUV1, CQV1, IWT1, TPV1, CTV1, C173, C185, ABV1, C179, C697, C698
Program (BSIT-NA) completion: 80%